CI: (deps): Bump peaceiris/actions-gh-pages in /.github/workflows

Bumps [peaceiris/actions-gh-pages](https://github.com/peaceiris/actions-gh-pages) from 4.0.0 to 4.1.0.
- [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@4f9cc66...84c30a8)

---
updated-dependencies:
- dependency-name: peaceiris/actions-gh-pages
  dependency-version: 4.1.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

.github/workflows/docs.yml

@@ -89,7 +89,7 @@ jobs:
       run: echo "doc-version=${{ env.DOC_VERSION }}" >> $GITHUB_OUTPUT
 
     - name: Upload to GitHub Pages
-      uses: peaceiris/actions-gh-pages@4f9cc6602d3f66b9c108549d475ec49e8ef4d45e # v4.0.0
+      uses: peaceiris/actions-gh-pages@84c30a85c19949d7eee79c4ff27748b70285e453 # v4.1.0
       with:
         github_token: ${{ secrets.GITHUB_TOKEN }}
         publish_dir: ./docs/build/html