Replacing more of `nefrob/pr-description@v1.1.2` with our GitHub Script.
This is moving towards Javascript CI, and hopefully an unit-testable CI.
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## Summary by CodeRabbit
- **Chores**
- Replaced `nefrob/pr-description` action with `actions/github-script`
for handling test responses in PR automation.
- Improved guidance on modifying PR body for correct tag usage and
linked to relevant documentation.
- Enhanced script content to handle warnings and failures more
effectively in PR workflow automation.
- **New Features**
- Updated the `write-cypress-status` script to support different alert
types and prefixes, ensuring better validation and formatting of alerts.
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