Ruby CLI: Show compiled source when compile produces invalid Ruby

[marcoroth]

This pull request updates the Ruby CLI to show the compiled source when the compile subcommand produced invalid Ruby

Before

❯ bin/herb compile test.html.erb
Compiled template produced invalid Ruby:
  - unexpected end-of-input, assuming it is closing the parent top level context (line 4)
  - expected a matching `)` (line 5)
  - unexpected end-of-input; expected a `)` to close the arguments (line 4)

After

❯ bin/herb compile test.html.erb
__herb = ::Herb::Engine; _buf = ::String.new; _buf << __herb.h((render Foo.new do; _buf << 'hello'.freeze; end # comment))
 _buf << '
'.freeze;
_buf.to_s

Compiled template produced invalid Ruby:
  - unexpected end-of-input, assuming it is closing the parent top level context (line 4)
  - expected a matching `)` (line 5)
  - unexpected end-of-input; expected a `)` to close the arguments (line 4)

Inspired while working on #1363

[pkg-pr-new]

npx https://pkg.pr.new/@herb-tools/formatter@1365

npx https://pkg.pr.new/@herb-tools/language-server@1365

npx https://pkg.pr.new/@herb-tools/linter@1365

commit: e744a6c

[github-actions]

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_{🌱 Grown from commit e744a6c}

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✅ Preview deployment has been cleaned up.