github-actions(deps): bump actions/stale from v3.0.16 to v3.0.18

Bumps [actions/stale](https://github.com/actions/stale) from v3.0.16 to v3.0.18.
- [Release notes](https://github.com/actions/stale/releases)
- [Commits](actions/stale@v3.0.16...3b3c3f0)

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

.github/workflows/prune.yaml

@@ -18,7 +18,7 @@ jobs:
 
     steps:
       - name: "Prune issues and pull requests"
-        uses: "actions/stale@v3.0.16"
+        uses: "actions/stale@v3.0.18"
         with:
           days-before-close: "${{ env.DAYS_BEFORE_CLOSE }}"
           days-before-stale: "${{ env.DAYS_BEFORE_STALE }}"