Update stale.yml

Author: Yishuai Li

.github/workflows/stale.yml

@@ -1,7 +1,7 @@
 name: 'Close stale issues and PRs'
 on:
   schedule:
-    - cron: '30 1 * * 1-5'
+    - cron: '30 1 * * 1'
 
 permissions:
   issues: write
@@ -11,6 +11,6 @@ jobs:
   stale:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/stale@v8
+      - uses: actions/stale@v9
         with:
           days-before-close: -1