Add stale bot to auto-close fixed issues after 1 day (#7)

Author: brandonrc

.github/workflows/stale.yml

@@ -0,0 +1,30 @@
+name: Close Fixed Issues
+
+on:
+  schedule:
+    - cron: '0 */6 * * *'
+  workflow_dispatch:
+
+permissions:
+  issues: write
+
+jobs:
+  close-fixed:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/stale@v9
+        with:
+          only-labels: 'status: fixed'
+          days-before-stale: 1
+          days-before-close: 0
+          stale-issue-label: 'closing-soon'
+          stale-issue-message: >
+            This issue was marked as fixed 1 day ago with no further feedback.
+            It will be closed shortly. If the fix doesn't work as expected,
+            please comment and we'll reopen it.
+          close-issue-message: >
+            Closed automatically after 1 day with no feedback since the fix was shipped.
+            Feel free to reopen if you run into any issues.
+          exempt-issue-labels: 'pinned,status: blocked'
+          days-before-pr-stale: -1
+          days-before-pr-close: -1