chore: regularly close stale issues (#2533)

Co-authored-by: Daniel Dyla <dyladan@users.noreply.github.com>

.github/workflows/close-stale.yml

@@ -0,0 +1,21 @@
+name: 'Close stale issues and PRs'
+on:
+  schedule:
+    - cron: '30 6 * * 1'
+
+jobs:
+  stale:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/stale@v4
+        with:
+          days-before-stale: 60
+          days-before-close: 14
+          stale-issue-message: 'This issue is stale because it has been open 60 days with no activity. Remove stale label or comment or this will be closed in 14 days.'
+          close-issue-message: 'This issue was closed because it has been stale for 14 days with no activity.'
+          stale-pr-message: 'This PR is stale because it has been open 60 days with no activity. Remove stale label or comment or this will be closed in 14 days.'
+          close-pr-message: 'This PR was closed because it has been stale for 14 days with no activity.'
+          stale-issue-label: stale
+          stale-pr-label: stale
+          exempt-issue-labels: never-stale
+          exempt-pr-labels: never-stale