refactor!: rework src/pkg/packager API

[AustinAbro321]

Description

...

Related Issue

Fixes #

Relates to #

Checklist before merging

• Test, docs, adr added or updated as needed
• Contributor Guide Steps followed

[netlify]

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[codecov]

Codecov Report

Attention: Patch coverage is 21.25679% with 1015 lines in your changes missing coverage. Please review.

Files with missing lines	Patch %	Lines
src/pkg/packager/deploy.go	0.00%	324 Missing ⚠️
src/pkg/packager/inspect.go	20.16%	189 Missing and 9 partials ⚠️
src/pkg/packager/mirror.go	0.00%	100 Missing ⚠️
src/pkg/packager/pull.go	47.54%	65 Missing and 31 partials ⚠️
src/pkg/packager/remove.go	0.00%	90 Missing ⚠️
src/pkg/packager/dev.go	0.00%	49 Missing ⚠️
src/pkg/packager/generate.go	0.00%	44 Missing ⚠️
src/pkg/packager/publish.go	66.32%	21 Missing and 12 partials ⚠️
src/cmd/package.go	34.09%	29 Missing ⚠️
src/pkg/packager/create.go	48.00%	19 Missing and 7 partials ⚠️
... and 6 more

Files with missing lines	Coverage Δ
src/cmd/cmd.go	90.00% <100.00%> (ø)
src/internal/packager/images/common.go	31.57% <ø> (+3.00%)	⬆️
src/pkg/interactive/prompt.go	0.00% <ø> (ø)
src/pkg/lint/schema.go	55.26% <ø> (ø)
src/pkg/packager/filters/diff.go	84.61% <100.00%> (+0.40%)	⬆️
src/pkg/packager/filters/utils.go	100.00% <100.00%> (ø)
src/pkg/packager/find_images.go	53.94% <ø> (ø)
src/pkg/packager/layout/assemble.go	39.46% <ø> (ø)
src/pkg/packager/layout/package.go	44.16% <ø> (ø)
src/pkg/packager/layout/sbom.go	48.21% <ø> (ø)
... and 27 more

... and 1 file with indirect coverage changes

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[AustinAbro321]

Closing in favor of #3906