chore(github-action): update actions/stale digest to 5bef64f (#31002)

This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
| [actions/stale](https://redirect.github.com/actions/stale) | action |
digest | `28ca103` -> `5bef64f` |

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.github/workflows/stale.yaml

@@ -11,7 +11,7 @@ jobs:
     runs-on: ubuntu-24.04
     steps:
       - name: Check for stale issues and PRs
-        uses: actions/stale@28ca1036281a5e5922ead5184a1bbf96e5fc984e # v9
+        uses: actions/stale@5bef64f19d7facfb25b37b414482c7164d639639 # v9
         with:
           repo-token: ${{ secrets.BOT_TOKEN }}
           days-before-issue-stale: 180