feat: Test writing remote Actions locally

[ChristopherHX]

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How to test

Usage: ./act --local-repository "https://github.com/test/test@v0=$PWD" -W test.yml -P self-hosted=-self-hosted -v

Now also possible ./act --local-repository "test/test@v0=$PWD" -W test.yml -P self-hosted=-self-hosted -v

on: push
jobs:
  _:
    runs-on: self-hosted
    steps:
    - uses: test/test@v0

action.yml in cwd

runs:
  using: composite
  steps:
  - run: echo Test

Why?

Local actions cannot have pre steps and use a different syntax in the uses key

[github-actions[bot]]

🦙 MegaLinter status: ✅ SUCCESS

Descriptor	Linter	Files	Fixed	Errors	Elapsed time
✅ EDITORCONFIG	editorconfig-checker	4		0	0.02s
✅ REPOSITORY	gitleaks	yes		no	2.34s
✅ REPOSITORY	git_diff	yes		no	0.18s
✅ REPOSITORY	grype	yes		no	7.87s
✅ REPOSITORY	secretlint	yes		no	1.16s
✅ REPOSITORY	trivy-sbom	yes		no	0.61s
✅ REPOSITORY	trufflehog	yes		no	6.98s

See detailed report in MegaLinter reports Set VALIDATE_ALL_CODEBASE: true in mega-linter.yml to validate all sources, not only the diff

MegaLinter is graciously provided by

[ChristopherHX]

Actually only two commits here are implementation for this pr.

The rest is part of #1954, that's why I initially didn't create a pr for this.

[codecov[bot]]

Codecov Report

Attention: Patch coverage is 68.85246% with 19 lines in your changes are missing coverage. Please review.

Project coverage is 61.99%. Comparing base (5a80a04) to head (5c1546f). Report is 16 commits behind head on master.

Files	Patch %	Lines
pkg/runner/local_repository_cache.go	68.85%	14 Missing and 5 partials :warning:

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #2155      +/-   ##
==========================================
+ Coverage   61.56%   61.99%   +0.43%     
==========================================
  Files          53       56       +3     
  Lines        9002     9139     +137     
==========================================
+ Hits         5542     5666     +124     
- Misses       3020     3026       +6     
- Partials      440      447       +7     

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