fix: improve unexpected event filtering in tests

[chmouel]

📝 Description of the Change

Refactored the event checking logic to specifically target and report
warning events instead of filtering out individual event reasons. This
ensures that unexpected errors are correctly identified during test
validation.

🔗 Linked GitHub Issue

Fixes #

🧪 Testing Strategy

• Unit tests
• Integration tests
• End-to-end tests
• Manual testing
• Not Applicable

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Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 59.00%. Comparing base (9c4e9cb) to head (ac778ba).
⚠️ Report is 1 commits behind head on main.
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Additional details and impacted files

@@           Coverage Diff           @@
##             main    #2688   +/-   ##
=======================================
  Coverage   59.00%   59.00%           
=======================================
  Files         208      208           
  Lines       20436    20436           
=======================================
  Hits        12059    12059           
  Misses       7603     7603           
  Partials      774      774           

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[chmouel]

made watcher in debug pipelines-as-code/startpaac#24 so this may be needed,

[gemini-code-assist]

Code Review

This pull request refactors the event checking logic in test/pkg/gitea/test.go by introducing a new unexpectedEvents helper function. This helper filters for non-normal events, replacing the previous logic that specifically excluded 'CancelInProgress' reasons. The checkEvents function now logs all event reasons before failing if any unexpected events are detected. I have no feedback to provide.