Bump actions/github-script from 7 to 8

Bumps [actions/github-script](https://github.com/actions/github-script) from 7 to 8.
- [Release notes](https://github.com/actions/github-script/releases)
- [Commits](actions/github-script@v7...v8)

---
updated-dependencies:
- dependency-name: actions/github-script
  dependency-version: '8'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

.github/workflows/pr-validation.yml

@@ -424,7 +424,7 @@ jobs:
         echo "🔗 [View detailed results](https://github.com/${{ github.repository }}/actions/runs/${{ github.run_id }})" >> $GITHUB_STEP_SUMMARY
     
     - name: Comment on PR
-      uses: actions/github-script@v7
+      uses: actions/github-script@v8
       if: github.event_name == 'pull_request'
       with:
         github-token: ${{ secrets.GITHUB_TOKEN }}