chore(deps): bump actions/github-script from 7 to 9

Bumps [actions/github-script](https://github.com/actions/github-script) from 7 to 9.
- [Release notes](https://github.com/actions/github-script/releases)
- [Commits](actions/github-script@v7...v9)

---
updated-dependencies:
- dependency-name: actions/github-script
  dependency-version: '9'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

.github/workflows/nix-build.yml

@@ -48,7 +48,7 @@ jobs:
 
       - name: Post or update PR comment
         if: steps.check.outputs.SYNC_OK == 'false' && github.event_name == 'pull_request'
-        uses: actions/github-script@v7
+        uses: actions/github-script@v9
         env:
           COMMENT_BODY: ${{ steps.missing.outputs.body }}
         with:
@@ -151,7 +151,7 @@ jobs:
 
       - name: Post or update PR comment
         if: steps.build.outputs.BUILD_FAILED == 'true' && github.event_name == 'pull_request'
-        uses: actions/github-script@v7
+        uses: actions/github-script@v9
         env:
           COMMENT_BODY: ${{ steps.error.outputs.body }}
         with: