Bump actions/stale from 9.0.0 to 9.1.0 (#107)

Bumps [actions/stale](https://github.com/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@v9.0.0...v9.1.0)

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

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

Author: dependabot[bot]

.github/workflows/stale.yml

@@ -18,7 +18,7 @@ jobs:
       pull-requests: write  # for actions/stale to close stale PRs
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/stale@v9.0.0
+      - uses: actions/stale@v9.1.0
         with:
           repo-token: ${{ secrets.GITHUB_TOKEN }}
           stale-issue-message: 'This issue is stale because it has been open for 90 days with no activity. Remove the stale label or add a comment to keep it open. If you do not take action, this will be closed in 10 days.'