CI: Bump actions/github-script from 8 to 9

Bumps [actions/github-script](https://github.com/actions/github-script) from 8 to 9.
- [Release notes](https://github.com/actions/github-script/releases)
- [Commits](https://github.com/actions/github-script/compare/v8...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>

.github/workflows/label-pull-requests.yml

@@ -18,7 +18,7 @@ jobs:
       - uses: actions/checkout@v6.0.2
 
       - name: Label pull request
-        uses: actions/github-script@v8
+        uses: actions/github-script@v9
         with:
           script: |
             const script = require('./Meta/label-pull-requests.js')

.github/workflows/lintcommits.yml

@@ -12,7 +12,7 @@ jobs:
 
     steps:
       - name: Lint PR commits
-        uses: actions/github-script@v8
+        uses: actions/github-script@v9
         with:
           script: |
             const excludedBotIds = [