build(deps): bump peaceiris/actions-gh-pages from 3 to 4

Bumps [peaceiris/actions-gh-pages](https://github.com/peaceiris/actions-gh-pages) from 3 to 4.
- [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...v4)

---
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>

.github/workflows/main.yml

@@ -157,7 +157,7 @@ jobs:
                     echo "rapiq.tada5hi.net" > CNAME
 
             -   name: Deploy
-                uses: peaceiris/actions-gh-pages@v3
+                uses: peaceiris/actions-gh-pages@v4
                 with:
                     github_token: ${{ secrets.GITHUB_TOKEN }}
                     publish_dir: ./docs/.vitepress/dist