Bump gh-pages from 2.2.0 to 5.0.0

Bumps [gh-pages](https://github.com/tschaub/gh-pages) from 2.2.0 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@v2.2.0...v5.0.0)

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

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

package.json

@@ -8,7 +8,7 @@
     "@testing-library/react": "^9.5.0",
     "@testing-library/user-event": "^7.2.1",
     "bootstrap": "^4.4.1",
-    "gh-pages": "^2.2.0",
+    "gh-pages": "^5.0.0",
     "react": "^16.13.1",
     "react-bootstrap": "^1.0.1",
     "react-dom": "^16.13.1",