MP1: Bump actions/stale from 8 to 9

Bumps [actions/stale](https://github.com/actions/stale) from 8 to 9.
- [Release notes](https://github.com/actions/stale/releases)
- [Changelog](https://github.com/actions/stale/blob/main/CHANGELOG.md)
- [Commits](actions/stale@v8...v9)

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

Signed-off-by: dependabot[bot] <[email protected]>

.github/workflows/workflow_stale.yml

@@ -18,7 +18,7 @@ jobs:
       # - No PRs marked as no-stale
       # - No issues (-1)
       - name: 90 days stale PRs policy
-        uses: actions/stale@v8
+        uses: actions/stale@v9
         with:
           days-before-stale: 90
           days-before-close: 7