Bump actions/stale from v3.0.15 to v3.0.16

Bumps [actions/stale](https://github.com/actions/stale) from v3.0.15 to v3.0.16.
- [Release notes](https://github.com/actions/stale/releases)
- [Commits](actions/stale@v3.0.15...9d6f465)

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

.github/workflows/stale.yml

@@ -7,7 +7,7 @@ jobs:
   stale:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/stale@v3.0.15
+    - uses: actions/stale@v3.0.16
       with:
         repo-token: ${{ secrets.GITHUB_TOKEN }}
         stale-issue-message: 'This issue is stale because it has been open more than 45 days with no activity. Remove stale label or comment or this will be closed in 15 days'