Bump actions/stale from 9.0.0 to 9.1.0 in the github-actions group (#470)

Bumps the github-actions group with 1 update: [actions/stale](https://github.com/actions/stale).


Updates `actions/stale` from 9.0.0 to 9.1.0
- [Release notes](https://github.com/actions/stale/releases)
- [Changelog](https://github.com/actions/stale/blob/main/CHANGELOG.md)
- [Commits](actions/stale@28ca103...5bef64f)

---
updated-dependencies:
- dependency-name: actions/stale
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: github-actions
...

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

Author: dependabot[bot]

.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:
           days-before-stale: -1
           days-before-close: 14