Bump actions/stale from 9.0.0 to 9.1.0 in /.github/workflows (#6143)

Bumps [actions/stale](https://github.com/actions/stale) from 9.0.0 to 9.1.0.
- [Release notes](https://github.com/actions/stale/releases)
- [Changelog](https://github.com/actions/stale/blob/main/CHANGELOG.md)
- [Commits](https://github.com/actions/stale/compare/v9.0.0...v9.1.0)

---
updated-dependencies:
- dependency-name: actions/stale
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

.github/workflows/stale_bot.yml

@@ -16,7 +16,7 @@ jobs:
 
     steps:
       - name: Stale PR+Issues
-        uses: actions/stale@v9.0.0
+        uses: actions/stale@v9.1.0
         with:
           exempt-issue-labels: pinned,3.0
           exempt-pr-labels: pinned,3.0