stale.yml: update to v9 (#740)

[Release Notes](https://github.com/actions/stale/releases/tag/v9)
1 year ago · 037be99a8f
1 changed files with 1 additions and 1 deletions
--- a/.github/workflows/stale.yml
+++ b/.github/workflows/stale.yml
@ -19,7 +19,7 @@ jobs:
      pull-requests: write

    steps:
-    - uses: actions/stale@v5
+    - uses: actions/stale@v9
      with:
          days-before-issue-stale: 14
          days-before-issue-close: 7