Merge pull request #1119 from wmbusmeters/dependabot/github_actions/actions/stale-9

Bump actions/stale from 8 to 9

.github/workflows/close_stale_issues.yml

@@ -10,7 +10,7 @@ jobs:
   stale:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/stale@v8
+      - uses: actions/stale@v9
         with:
           stale-issue-message: 'This issue is stale because it has been open for 2 month with no activity. Remove stale label or comment or this will be closed in 1 month.'
           close-issue-message: 'This issue was closed because it has been stalled for 1 month with no activity.'