Bump peaceiris/actions-gh-pages from 3.9.3 to 4.0.0 (#27)

Bumps [peaceiris/actions-gh-pages](https://github.com/peaceiris/actions-gh-pages) from 3.9.3 to 4.0.0.
- [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@373f7f2...4f9cc66)

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

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

.github/workflows/release.yml

@@ -75,7 +75,7 @@ jobs:
       run: |
         mvn -B -e -Prelease -Preporting install site site:stage
     - name: Website Deploy
-      uses: peaceiris/actions-gh-pages@373f7f263a76c20808c831209c920827a82a2847
+      uses: peaceiris/actions-gh-pages@4f9cc6602d3f66b9c108549d475ec49e8ef4d45e
       if: github.event_name == 'push' || (github.event_name == 'workflow_dispatch' && contains('true', github.event.inputs.website))
       with:
         personal_token: ${{ secrets.COMMIT_TOKEN }}