ci(deps): 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/dependabot-auto-merge.yml

@@ -25,7 +25,7 @@ jobs:
     steps:
       - name: Find matching Dependabot PR
         id: pr
-        uses: actions/github-script@v8
+        uses: actions/github-script@v9
         with:
           script: |
             const branch = context.payload.workflow_run.head_branch;
@@ -52,7 +52,7 @@ jobs:
 
       - name: Merge PR when checks pass
         if: steps.pr.outputs.should_merge == 'true'
-        uses: actions/github-script@v8
+        uses: actions/github-script@v9
         with:
           script: |
             const owner = context.repo.owner;