build(deps): bump actions/github-script from 3.1.0 to 6.3.1

Bumps [actions/github-script](https://github.com/actions/github-script) from 3.1.0 to 6.3.1.
- [Release notes](https://github.com/actions/github-script/releases)
- [Commits](https://github.com/actions/github-script/compare/v3.1...v6.3.1)

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

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

.github/workflows/GnuComment.yml

@@ -13,7 +13,7 @@ jobs:
       github.event.workflow_run.event == 'pull_request'
     steps:
       - name: 'Download artifact'
-        uses: actions/github-script@v3.1.0
+        uses: actions/github-script@v6.3.1
         with:
           script: |
             // List all artifacts from GnuTests
@@ -38,7 +38,7 @@ jobs:
       - run: unzip comment.zip
 
       - name: 'Comment on PR'
-        uses: actions/github-script@v3
+        uses: actions/github-script@v6.3.1
         with:
           github-token: ${{ secrets.GITHUB_TOKEN }}
           script: |