build(deps): bump peaceiris/actions-gh-pages from 3.9.0 to 3.9.1

Bumps [peaceiris/actions-gh-pages](https://github.com/peaceiris/actions-gh-pages) from 3.9.0 to 3.9.1.
- [Release notes](https://github.com/peaceiris/actions-gh-pages/releases)
- [Changelog](https://github.com/peaceiris/actions-gh-pages/blob/main/CHANGELOG.md)
- [Commits](peaceiris/actions-gh-pages@v3.9.0...v3.9.1)

---
updated-dependencies:
- dependency-name: peaceiris/actions-gh-pages
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

.github/workflows/publish.yml

@@ -56,7 +56,7 @@ jobs:
           name: artifact
           path: ./artifact
 
-      - uses: peaceiris/actions-gh-pages@v3.9.0
+      - uses: peaceiris/actions-gh-pages@v3.9.1
         with:
           github_token: ${{ secrets.GITHUB_TOKEN }}
           publish_dir: ./artifact/site