Bump actions/stale from 4.1.0 to 5 (#7421)

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

.github/workflows/repo-stale.yaml

@@ -10,7 +10,7 @@ jobs:
     runs-on: ubuntu-latest
     if: ${{ contains(github.repository, 'jellyfin/') }}
     steps:
-      - uses: actions/stale@v4.1.0
+      - uses: actions/stale@v5
         with:
           repo-token: ${{ secrets.JF_BOT_TOKEN }}
           days-before-stale: 120