Merge pull request #1188 from slack-go/add-stale-action

Add actions/stale action

.github/workflows/stale.yaml

@@ -0,0 +1,24 @@
+name: 'Close stale issues and PRs'
+on:
+  schedule:
+    - cron: '0 0 * * 1' # every Monday 0:00 UTC
+
+  workflow_dispatch:
+
+permissions:
+  issues: write
+  pull-requests: write
+
+jobs:
+  stale:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/stale@1160a2240286f5da8ec72b1c0816ce2481aabf84 # v8.0.0
+        with:
+          any-of-labels: 'feedback given'
+          days-before-stale: 45
+          days-before-pr-close: 10
+          stale-issue-message: 'This issue is stale because it has been open 45 days with no activity. Remove stale label or comment or this will be closed in 10 days.'
+          stale-pr-message: 'This PR is stale because it has been open 45 days with no activity. Remove stale label or comment or this will be closed in 10 days.'
+          close-issue-message: 'This issue was closed because it has been stalled for 10 days with no activity.'
+          close-pr-message: 'This PR was closed because it has been stalled for 10 days with no activity.'