Automate the closing of stale issues

.github/workflows/close-issues.yml

@@ -0,0 +1,22 @@
+name: Close inactive issues
+on:
+  schedule:
+    - cron: "30 1 * * *"
+
+jobs:
+  close-issues:
+    runs-on: ubuntu-latest
+    permissions:
+      issues: write
+    steps:
+      - uses: actions/stale@v5
+        with:
+          days-before-issue-stale: 30
+          days-before-issue-close: 14
+          stale-issue-label: "stale"
+          stale-issue-message: "Marking this issue as stale because it has been open for 30 days with no activity. It will be closed in 14 days if there's no activity, or if the `stale` label is not removed. Does anyone want to add something?"
+          close-issue-message: "Closing this issue now. Don't hesitate to reopen if you have anything to add :-)"
+          days-before-pr-stale: -1
+          days-before-pr-close: -1
+          repo-token: ${{ secrets.GITHUB_TOKEN }}
+          any-of-labels: needs info