Bump actions/stale from 9.0.0 to 9.1.0 in the github-actions group

.github/workflows/no-response.yml

@@ -19,7 +19,7 @@ jobs:
     runs-on: ubuntu-latest
     if: ${{ github.repository_owner == 'dart-lang' }}
     steps:
-      - uses: actions/stale@28ca1036281a5e5922ead5184a1bbf96e5fc984e
+      - uses: actions/stale@5bef64f19d7facfb25b37b414482c7164d639639
         with:
           # Don't automatically mark inactive issues+PRs as stale.
           days-before-stale: -1