fix: proper error message for non-existing remote sources

[snakster]

What this PR does / why we need it:

This PR fixes the error message that is shown when a remote bundle/component source is not found. See the linked issue for details. New error looks like this:

Error: unable to parse configuration
> /private/tmp/tm-test/bundle.tm.hcl:2,3-75: the source 'git::https://github.com/terramate-io/terramate.git//this-subdir-does-not-exist' does not exist

Which issue(s) this PR fixes:

Fixes #2319

Special notes for your reviewer:

no

Does this PR introduce a user-facing change?

yes, see changelog

---

Note

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[github-actions]

Preview of ubuntu/go tests in 8dec827

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generate/resolve

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generate/resolve

[github-actions]

## Package: benchmarks/changed
metric: time/op
ChangeDetection-4: old 1.52ms ± 4%: new 1.54ms ± 4%: delta: 0.00%
ChangeDetectionTFAndTG-4: old 1.43ms ± 4%: new 1.43ms ± 5%: delta: 0.00%
metric: alloc/op
ChangeDetection-4: old 356kB ± 0%: new 356kB ± 0%: delta: 0.00%
ChangeDetectionTFAndTG-4: old 248kB ± 0%: new 248kB ± 1%: delta: 0.00%
metric: allocs/op
ChangeDetection-4: old 2.40k ± 0%: new 2.40k ± 0%: delta: 0.00%
ChangeDetectionTFAndTG-4: old 1.70k ± 1%: new 1.70k ± 1%: delta: 0.00%

---

## Package: cloud
metric: time/op
CloudReadLines-4: old 561µs ±21%: new 677µs ± 9%: delta: 20.60%
CloudReadLine-4: old 3.19ms ± 5%: new 3.21ms ± 1%: delta: 0.00%
check failed: time/op=+20%
metric: alloc/op
CloudReadLines-4: old 3.12MB ± 0%: new 3.12MB ± 0%: delta: 0.00%
CloudReadLine-4: old 3.37MB ± 0%: new 3.37MB ± 0%: delta: 0.00%
metric: allocs/op
CloudReadLines-4: old 5.54k ± 0%: new 5.54k ± 0%: delta: 0.00%
CloudReadLine-4: old 60.0k ± 0%: new 60.0k ± 0%: delta: 0.00%

---

## Package: fs
metric: time/op
ListFiles-4: old 26.5µs ±11%: new 26.3µs ±13%: delta: 0.00%
metric: alloc/op
ListFiles-4: old 27.6kB ± 0%: new 27.6kB ± 0%: delta: 0.00%
metric: allocs/op
ListFiles-4: old 335 ± 0%: new 335 ± 0%: delta: 0.00%

---

## Package: generate
metric: time/op
Generate-4: old 699ms ±16%: new 750ms ±13%: delta: 7.39%
GenerateRegex-4: old 422ms ±30%: new 480ms ±17%: delta: 13.62%
metric: alloc/op
Generate-4: old 2.23GB ± 0%: new 2.23GB ± 0%: delta: 0.00%
GenerateRegex-4: old 922MB ± 0%: new 922MB ± 0%: delta: 0.00%
metric: allocs/op
Generate-4: old 25.7M ± 0%: new 25.7M ± 0%: delta: 0.00%
GenerateRegex-4: old 18.1M ± 0%: new 18.1M ± 0%: delta: 0.00%

---

## Package: hcl/ast
metric: time/op
TokensForExpressionComplex-4: old 786µs ± 7%: new 706µs ± 0%: delta: -10.07%
TokensForExpressionPlainStringNoNewline-4: old 302ns ± 4%: new 278ns ± 1%: delta: -7.87%
TokensForExpressionStringWith100Newlines-4: old 9.01µs ± 1%: new 8.78µs ± 7%: delta: 0.00%
TokensForExpressionObjectWith100KeysWithNumberValues-4: old 879µs ± 4%: new 861µs ± 1%: delta: -2.09%
TokensForExpression-4: old 737µs ± 5%: new 704µs ± 0%: delta: -4.45%
metric: alloc/op
TokensForExpressionComplex-4: old 393kB ± 0%: new 393kB ± 0%: delta: -0.01%
TokensForExpressionPlainStringNoNewline-4: old 512B ± 0%: new 512B ± 0%: delta: 0.00%
TokensForExpressionStringWith100Newlines-4: old 12.5kB ± 0%: new 12.5kB ± 0%: delta: 0.00%
TokensForExpressionObjectWith100KeysWithNumberValues-4: old 393kB ± 0%: new 393kB ± 0%: delta: 0.00%
TokensForExpression-4: old 393kB ± 0%: new 393kB ± 0%: delta: -0.01%
metric: allocs/op
TokensForExpressionComplex-4: old 4.75k ± 0%: new 4.75k ± 0%: delta: 0.00%
TokensForExpressionPlainStringNoNewline-4: old 20.0 ± 0%: new 20.0 ± 0%: delta: 0.00%
TokensForExpressionStringWith100Newlines-4: old 227 ± 0%: new 227 ± 0%: delta: 0.00%
TokensForExpressionObjectWith100KeysWithNumberValues-4: old 3.09k ± 0%: new 3.09k ± 0%: delta: 0.00%
TokensForExpression-4: old 4.75k ± 0%: new 4.75k ± 0%: delta: 0.00%

---

## Package: hcl/eval
metric: time/op
PartialEvalComplex-4: old 354µs ±23%: new 282µs ±16%: delta: -20.39%
PartialEvalSmallString-4: old 2.61µs ±15%: new 1.97µs ±21%: delta: -24.38%
PartialEvalHugeString-4: old 1.00ms ± 7%: new 0.89ms ± 5%: delta: -11.07%
PartialEvalHugeInterpolatedString-4: old 2.87ms ±18%: new 2.57ms ±27%: delta: -10.60%
PartialEvalObject-4: old 14.4µs ±15%: new 13.2µs ±10%: delta: -8.65%
metric: alloc/op
PartialEvalComplex-4: old 360kB ± 0%: new 360kB ± 0%: delta: 0.00%
PartialEvalSmallString-4: old 1.94kB ± 0%: new 1.94kB ± 0%: delta: 0.00%
PartialEvalHugeString-4: old 196kB ± 0%: new 196kB ± 0%: delta: 0.00%
PartialEvalHugeInterpolatedString-4: old 4.30MB ± 0%: new 4.30MB ± 0%: delta: 0.00%
PartialEvalObject-4: old 19.4kB ± 0%: new 19.4kB ± 0%: delta: 0.00%
metric: allocs/op
PartialEvalComplex-4: old 3.72k ± 0%: new 3.72k ± 0%: delta: 0.00%
PartialEvalSmallString-4: old 25.0 ± 0%: new 25.0 ± 0%: delta: 0.00%
PartialEvalHugeString-4: old 38.0 ± 0%: new 38.0 ± 0%: delta: 0.00%
PartialEvalHugeInterpolatedString-4: old 25.1k ± 0%: new 25.1k ± 0%: delta: 0.00%
PartialEvalObject-4: old 179 ± 0%: new 179 ± 0%: delta: 0.00%

---

## Package: ls
metric: time/op
FindDefinition/10_files-4: old 14.6µs ± 1%: new 15.9µs ± 3%: delta: 8.60%
FindDefinition/50_files-4: old 21.2µs ± 2%: new 22.2µs ± 2%: delta: 4.56%
FindDefinition/100_files-4: old 30.1µs ± 1%: new 31.0µs ± 3%: delta: 2.94%
FindDefinition/500_files-4: old 118µs ± 1%: new 118µs ± 4%: delta: 0.00%
FindReferences/10_files_5_refs-4: old 89.8µs ± 1%: new 90.9µs ± 2%: delta: 1.18%
FindReferences/50_files_10_refs-4: old 340µs ± 1%: new 344µs ± 3%: delta: 1.15%
FindReferences/100_files_20_refs-4: old 659µs ± 1%: new 677µs ± 7%: delta: 2.64%
FindReferences/500_files_50_refs-4: old 3.25ms ± 1%: new 3.30ms ± 2%: delta: 1.34%
Rename/10_files_5_refs-4: old 105µs ± 1%: new 108µs ± 4%: delta: 3.07%
Rename/50_files_10_refs-4: old 363µs ± 1%: new 365µs ± 2%: delta: 0.66%
Rename/100_files_20_refs-4: old 694µs ± 1%: new 700µs ± 1%: delta: 0.85%
SearchWorkspace/flat_100_files-4: old 620µs ± 2%: new 631µs ± 3%: delta: 1.77%
SearchWorkspace/flat_500_files-4: old 3.08ms ± 2%: new 3.10ms ± 1%: delta: 0.75%
SearchWorkspace/nested_100_files_5_deep-4: old 637µs ± 1%: new 640µs ± 1%: delta: 0.00%
SearchWorkspace/nested_500_files_5_deep-4: old 3.25ms ± 6%: new 3.14ms ± 1%: delta: -3.43%
ParseFile/small_file_10_lines-4: old 23.5µs ± 3%: new 22.9µs ± 2%: delta: -2.41%
ParseFile/medium_file_50_lines-4: old 102µs ± 3%: new 101µs ± 2%: delta: -0.90%
ParseFile/large_file_200_lines-4: old 429µs ± 4%: new 413µs ± 1%: delta: -3.66%
ParseFile/huge_file_1000_lines-4: old 2.26ms ±10%: new 2.13ms ± 2%: delta: -5.94%
metric: alloc/op
FindDefinition/10_files-4: old 15.2kB ± 0%: new 15.2kB ± 0%: delta: 0.00%
FindDefinition/50_files-4: old 20.1kB ± 0%: new 20.1kB ± 0%: delta: 0.00%
FindDefinition/100_files-4: old 26.4kB ± 0%: new 26.4kB ± 0%: delta: 0.00%
FindDefinition/500_files-4: old 72.8kB ± 0%: new 72.8kB ± 0%: delta: 0.00%
FindReferences/10_files_5_refs-4: old 87.0kB ± 0%: new 87.0kB ± 0%: delta: 0.01%
FindReferences/50_files_10_refs-4: old 335kB ± 0%: new 335kB ± 0%: delta: 0.01%
FindReferences/100_files_20_refs-4: old 646kB ± 0%: new 646kB ± 0%: delta: 0.01%
FindReferences/500_files_50_refs-4: old 3.13MB ± 0%: new 3.13MB ± 0%: delta: 0.00%
Rename/10_files_5_refs-4: old 105kB ± 0%: new 104kB ± 0%: delta: 0.00%
Rename/50_files_10_refs-4: old 359kB ± 0%: new 359kB ± 0%: delta: -0.00%
Rename/100_files_20_refs-4: old 677kB ± 0%: new 677kB ± 0%: delta: 0.00%
SearchWorkspace/flat_100_files-4: old 628kB ± 0%: new 628kB ± 0%: delta: 0.00%
SearchWorkspace/flat_500_files-4: old 3.09MB ± 0%: new 3.09MB ± 0%: delta: 0.00%
SearchWorkspace/nested_100_files_5_deep-4: old 636kB ± 0%: new 636kB ± 0%: delta: 0.00%
SearchWorkspace/nested_500_files_5_deep-4: old 3.13MB ± 0%: new 3.12MB ± 0%: delta: -0.02%
ParseFile/small_file_10_lines-4: old 34.7kB ± 0%: new 34.7kB ± 0%: delta: 0.00%
ParseFile/medium_file_50_lines-4: old 151kB ± 0%: new 151kB ± 0%: delta: 0.00%
ParseFile/large_file_200_lines-4: old 733kB ± 0%: new 733kB ± 0%: delta: 0.00%
ParseFile/huge_file_1000_lines-4: old 4.06MB ± 0%: new 4.06MB ± 0%: delta: 0.00%
metric: allocs/op
FindDefinition/10_files-4: old 209 ± 0%: new 209 ± 0%: delta: 0.00%
FindDefinition/50_files-4: old 291 ± 0%: new 291 ± 0%: delta: 0.00%
FindDefinition/100_files-4: old 392 ± 0%: new 392 ± 0%: delta: 0.00%
FindDefinition/500_files-4: old 1.19k ± 0%: new 1.19k ± 0%: delta: 0.00%
FindReferences/10_files_5_refs-4: old 960 ± 0%: new 960 ± 0%: delta: 0.00%
FindReferences/50_files_10_refs-4: old 3.81k ± 0%: new 3.81k ± 0%: delta: 0.00%
FindReferences/100_files_20_refs-4: old 7.34k ± 0%: new 7.34k ± 0%: delta: 0.00%
FindReferences/500_files_50_refs-4: old 35.9k ± 0%: new 35.9k ± 0%: delta: 0.00%
Rename/10_files_5_refs-4: old 1.15k ± 0%: new 1.15k ± 0%: delta: 0.00%
Rename/50_files_10_refs-4: old 4.09k ± 0%: new 4.09k ± 0%: delta: 0.00%
Rename/100_files_20_refs-4: old 7.74k ± 0%: new 7.74k ± 0%: delta: 0.00%
SearchWorkspace/flat_100_files-4: old 7.13k ± 0%: new 7.13k ± 0%: delta: 0.00%
SearchWorkspace/flat_500_files-4: old 35.1k ± 0%: new 35.1k ± 0%: delta: 0.00%
SearchWorkspace/nested_100_files_5_deep-4: old 7.18k ± 0%: new 7.18k ± 0%: delta: 0.00%
SearchWorkspace/nested_500_files_5_deep-4: old 35.2k ± 0%: new 35.2k ± 0%: delta: 0.00%
ParseFile/small_file_10_lines-4: old 315 ± 0%: new 315 ± 0%: delta: 0.00%
ParseFile/medium_file_50_lines-4: old 1.39k ± 0%: new 1.39k ± 0%: delta: 0.00%
ParseFile/large_file_200_lines-4: old 5.46k ± 0%: new 5.46k ± 0%: delta: 0.00%
ParseFile/huge_file_1000_lines-4: old 26.2k ± 0%: new 26.2k ± 0%: delta: 0.00%

---

## Package: stdlib
metric: time/op
TmAllTrueLiteralList-4: old 347µs ±11%: new 296µs ±13%: delta: -14.80%
TmAllTrueFuncall-4: old 14.4µs ±14%: new 9.5µs ± 9%: delta: -34.02%
TmAnyTrueLiteralList-4: old 2.71ms ±10%: new 2.07ms ±11%: delta: -23.34%
TmAnyTrueFuncall-4: old 11.6µs ±26%: new 9.0µs ± 7%: delta: -22.42%
TmTernary-4: old 1.17µs ±16%: new 1.13µs ±19%: delta: 0.00%
TmTryUnknownFunc-4: old 1.04µs ±10%: new 1.17µs ±17%: delta: 11.96%
TmTryUnknownVariable-4: old 1.07µs ±21%: new 1.15µs ±20%: delta: 7.14%
TmTryUnknownObjectKey-4: old 1.17µs ±19%: new 1.26µs ±14%: delta: 7.48%
SlugifyLargeList-4: old 1.20ms ±20%: new 1.27ms ± 5%: delta: 5.76%
metric: alloc/op
TmAllTrueLiteralList-4: old 320kB ± 0%: new 320kB ± 0%: delta: 0.00%
TmAllTrueFuncall-4: old 10.4kB ± 0%: new 10.4kB ± 0%: delta: 0.00%
TmAnyTrueLiteralList-4: old 2.09MB ± 0%: new 2.09MB ± 0%: delta: 0.00%
TmAnyTrueFuncall-4: old 10.5kB ± 0%: new 10.5kB ± 0%: delta: 0.00%
TmTernary-4: old 1.18kB ± 0%: new 1.18kB ± 0%: delta: 0.00%
TmTryUnknownFunc-4: old 784B ± 0%: new 784B ± 0%: delta: 0.00%
TmTryUnknownVariable-4: old 768B ± 0%: new 768B ± 0%: delta: 0.00%
TmTryUnknownObjectKey-4: old 952B ± 0%: new 952B ± 0%: delta: 0.00%
SlugifyLargeList-4: old 614kB ± 0%: new 614kB ± 0%: delta: 0.00%
metric: allocs/op
TmAllTrueLiteralList-4: old 5.93k ± 0%: new 5.93k ± 0%: delta: 0.00%
TmAllTrueFuncall-4: old 265 ± 0%: new 265 ± 0%: delta: 0.00%
TmAnyTrueLiteralList-4: old 59.6k ± 0%: new 59.6k ± 0%: delta: 0.00%
TmAnyTrueFuncall-4: old 267 ± 0%: new 267 ± 0%: delta: 0.00%
TmTernary-4: old 27.0 ± 0%: new 27.0 ± 0%: delta: 0.00%
TmTryUnknownFunc-4: old 21.0 ± 0%: new 21.0 ± 0%: delta: 0.00%
TmTryUnknownVariable-4: old 20.0 ± 0%: new 20.0 ± 0%: delta: 0.00%
TmTryUnknownObjectKey-4: old 23.0 ± 0%: new 23.0 ± 0%: delta: 0.00%
SlugifyLargeList-4: old 18.0k ± 0%: new 18.0k ± 0%: delta: 0.00%

---

## Package: tg
metric: time/op
ModuleDiscovery-4: old 32.6ms ±11%: new 30.2ms ±12%: delta: -7.38%
metric: alloc/op
ModuleDiscovery-4: old 36.8MB ± 0%: new 36.8MB ± 0%: delta: 0.02%
metric: allocs/op
ModuleDiscovery-4: old 451k ± 0%: new 451k ± 0%: delta: -0.00%

---