Run global checks and validate description when label is added to PR

[codeon]

Currently, global check workflows do not trigger when a bot user makes a commit to the PR. This happens in flow repo quite a lot as we have some bots committing to auto fix lint issues and for dummy commits to trigger e2e runs.

Since global checks do not run, the PR gets stuck and requires a manual dummy commit and running the e2e tests again.

Adding a trigger for global checks on label added to manually trigger the workflow without need for a commit and running CCI tests again.

Summary

Related Issues

• work-item: https://app.devrev.ai/devrev/works/ISS-209682

Type of Change

• Change doesn't affect products or customers
• Bug fix (non-breaking change which fixes an issue)
• Non-breaking change (the new functionality and code refactor do not require a migration strategy)
• Breaking change (fix or feature that will require a migration plan for data or other services)
• Documentation/comment update
• Other (please describe):

Testing Procedure

Checklist

• I used generative AI to generate this PR
• I have self-reviewed my code for clarity and correctness
• I have added or updated comments for complex or non-obvious logic in my code
• I have updated relevant documentation (e.g., README, code docs)
• My changes do not introduce new warnings or errors
• I have added or updated tests to cover new or changed functionality
• All tests pass locally with my changes applied

[svc-devrev]

🎉 Snyk checks have passed. No issues have been found so far.

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✅ license/snyk check is complete. No issues have been found. (View Details)

[devrev-jo]

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