ci: close stale issues and pull requests

Author: ericsizemore

.github/workflows/close-stale.yml

@@ -0,0 +1,25 @@
+name: "Close stale issues/pull requests."
+on:
+  schedule:
+    - cron: "30 1 * * *"
+  workflow_dispatch:
+
+jobs:
+  close-issues:
+    runs-on: ubuntu-latest
+    permissions:
+      issues: write
+      pull-requests: write
+    steps:
+      - uses: actions/stale@v9
+        with:
+          start-date: "2024-11-06T12:00:00Z"
+          days-before-stale: 30
+          days-before-close: 1
+          stale-issue-label: "stale"
+          stale-issue-message: "This issue is stale because it has been open for 30 days with no activity."
+          close-issue-message: "This issue was closed because it has been inactive for 1 day since being marked as stale."
+          stale-pr-label: "stale"
+          stale-pr-message: "This pull request is stale because it has been open for 30 days with no activity."
+          close-pr-message:  "This pull request was closed because it has been inactive for 1 day since being marked as stale."
+          repo-token: ${{ secrets.GITHUB_TOKEN }}