Add workflow to automatically close stale issues

Author: flobernd

.github/workflows/close-stall-issues.yml

@@ -0,0 +1,26 @@
+name: 'Close stale issues'
+
+on:
+  workflow_dispatch:
+  schedule:
+    - cron: '0 1 * * *'
+
+permissions:
+  issues: 'write'
+
+jobs:
+  stale:
+    name: 'Close stale issues'
+    runs-on: 'ubuntu-latest'
+    steps:
+      - uses: actions/stale@v9
+        with:
+          ascending: false
+          any-of-issue-labels: 'State: Awaiting Response'
+          stale-issue-label: 'State: Stale'
+          stale-issue-message: 'This issue is stale because it has been open 5 days with no activity. Remove stale label or comment or this will be closed in 2 days.'
+          close-issue-message: 'This issue was closed because it has been stalled for 2 days with no activity.'
+          days-before-issue-stale: 5
+          days-before-issue-close: 2
+          days-before-pr-stale: -1
+          days-before-pr-close: -1