fix(chore): Pin github actions to specific commit

[tjaniczek]

1. Pinned All Third-Party Actions to Commit SHA
2. Fixed Unsafe Checkout Reference

• Replaced actions/checkout@master with pinned SHA in triage.yaml

3. Updated Deprecated Actions

• Replaced actions/[email protected] with actions/github-script@v7 (pinned SHA)
• Modernized syntax from CLI args to JavaScript API calls

4. Added Actor Validation

• Added collaborator validation to issue_comment workflow in check-repro.yml
• Workflow now validates github.actor is a repository collaborator before executing

[github-actions]

The mobile version of example app from this branch is ready! You can see it here.

[callstack-bot]

Hey @tjaniczek, thank you for your pull request 🤗. The documentation from this branch can be viewed here.