Bump gh-pages from 1.2.0 to 5.0.0

Bumps [gh-pages](https://github.com/tschaub/gh-pages) from 1.2.0 to 5.0.0.
- [Release notes](https://github.com/tschaub/gh-pages/releases)
- [Changelog](https://github.com/tschaub/gh-pages/blob/main/changelog.md)
- [Commits](tschaub/gh-pages@v1.2.0...v5.0.0)

---
updated-dependencies:
- dependency-name: gh-pages
  dependency-type: direct:development
...

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

package.json

@@ -87,7 +87,7 @@
     "eslint-config-prettier": "^6.7.0",
     "eslint-plugin-import": "^2.24.2",
     "fs-extra": "5.0.0",
-    "gh-pages": "1.2.0",
+    "gh-pages": "5.0.0",
     "gitbook": "3.2.2",
     "gitbook-plugin-anchors": "^0.7.1",
     "gitbook-plugin-edit-link": "^2.0.2",