Merge pull request #21 from DLR-AE/feature_stale_bot

Feature stale bot

.github/workflows/housekeeping.yml

@@ -3,14 +3,14 @@
 # You can adjust the behavior by modifying this file.
 # For more information, see:
 # https://github.com/actions/stale
-name: Mark stale issues and pull requests
+name: Housekeeping
 
 on:
   schedule:
   - cron: '45 13 * * *'
 
 jobs:
-  stale:
+  Stale:
 
     runs-on: ubuntu-latest
     permissions:
@@ -21,7 +21,13 @@ jobs:
     - uses: actions/stale@v5
       with:
         repo-token: ${{ secrets.GITHUB_TOKEN }}
-        stale-issue-message: 'Stale issue message'
-        stale-pr-message: 'Stale pull request message'
-        stale-issue-label: 'no-issue-activity'
-        stale-pr-label: 'no-pr-activity'
+        stale-issue-message: >
+           This issue was automatically marked as stale because it has not seen
+           recent activity. It will be closed if no further activity occurs.
+           Thank you for your contributions.
+        stale-pr-message: >
+           This pull request was automatically marked as stale because it has not seen
+           recent activity. It will be closed if no further activity occurs.
+           Thank you for your contributions.
+        stale-issue-label: 'no-activity'
+        stale-pr-label: 'no-activity'