Merge pull request #2495 from matmair/stale

Mark stale PRs / issues

.github/workflows/stale.yml

@@ -0,0 +1,25 @@
+# Marks all issues that do not receive activity stale starting 2022
+name: Mark stale issues and pull requests
+
+on:
+  schedule:
+  - cron: '24 11 * * *'
+
+jobs:
+  stale:
+
+    runs-on: ubuntu-latest
+    permissions:
+      issues: write
+      pull-requests: write
+
+    steps:
+    - uses: actions/stale@v3
+      with:
+        repo-token: ${{ secrets.GITHUB_TOKEN }}
+        stale-issue-message: 'This issue seems stale. Please react to show this is still important.'
+        stale-pr-message: 'This PR seems stale. Please react to show this is still important.'
+        stale-issue-label: 'no-activity'
+        stale-pr-label: 'no-activity'
+        start-date: '2022-01-01'
+        exempt-all-milestones: true