[eas-cli] Validate local actions in workflow files

[sswrk]

Why

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How

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Test Plan

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[linear-code]

ENG-22387

[sswrk]

Warning

This pull request is not mergeable via GitHub because a downstack PR is open. Once all requirements are satisfied, merge this PR as a stack on Graphite.
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• [eas-cli] Validate local actions in workflow files #3931 👈 (View in Graphite)
• [build-tools] Load local action catalog at build runtime #3930
• [steps] Expand local actions at parse time #3929
• [steps] Add local action discovery utilities #3956
• [eas-build-job] Add local action schema #3928
• main

This stack of pull requests is managed by Graphite. Learn more about stacking.

[codecov]

Codecov Report

❌ Patch coverage is 89.74359% with 4 lines in your changes missing coverage. Please review.
✅ Project coverage is 59.61%. Comparing base (a2ee2c3) to head (60cfcdf).

Files with missing lines	Patch %	Lines
...kages/eas-cli/src/commandUtils/workflow/actions.ts	94.45%	2 Missing ⚠️
...es/eas-cli/src/commandUtils/workflow/validation.ts	33.34%	2 Missing ⚠️

Additional details and impacted files

@@                                               Coverage Diff                                               @@
##           szymonswierk/eng-22387-build-tools-load-custom-action-catalog-at-build-time    #3931      +/-   ##
===============================================================================================================
+ Coverage                                                                        59.58%   59.61%   +0.03%     
===============================================================================================================
  Files                                                                              941      942       +1     
  Lines                                                                            41429    41468      +39     
  Branches                                                                          8749     8753       +4     
===============================================================================================================
+ Hits                                                                             24680    24715      +35     
- Misses                                                                           16655    16659       +4     
  Partials                                                                            94       94              

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[github-actions]

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