⬆️ Bump peaceiris/actions-gh-pages from 3.9.3 to 4.0.0

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@v3.9.3...v4.0.0)

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

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

Author: dependabot[bot]

.github/workflows/setup.yml

@@ -62,7 +62,7 @@ jobs:
           command: "site"
         env:
           GH_PAT: ${{ secrets.GH_PAT || github.token }}
-      - uses: peaceiris/actions-gh-pages@v3.7.3
+      - uses: peaceiris/actions-gh-pages@v4.0.0
         name: GitHub Pages Deploy
         with:
           github_token: ${{ secrets.GH_PAT || github.token }}

.github/workflows/site.yml

@@ -38,7 +38,7 @@ jobs:
           command: "site"
         env:
           GH_PAT: ${{ secrets.GH_PAT || github.token }}
-      - uses: peaceiris/actions-gh-pages@v3.7.3
+      - uses: peaceiris/actions-gh-pages@v4.0.0
         name: GitHub Pages Deploy
         with:
           github_token: ${{ secrets.GH_PAT || github.token }}