Bump gh-pages from 4.0.0 to 6.1.1 (#16)

Bumps [gh-pages](https://github.com/tschaub/gh-pages) from 4.0.0 to 6.1.1.
- [Release notes](https://github.com/tschaub/gh-pages/releases)
- [Changelog](https://github.com/tschaub/gh-pages/blob/main/changelog.md)
- [Commits](tschaub/gh-pages@v4.0.0...v6.1.1)

---
updated-dependencies:
- dependency-name: gh-pages
  dependency-type: direct:development
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

package.json

@@ -29,7 +29,7 @@
     "@open-rpc/generator": "1.18.6",
     "@open-rpc/schema-utils-js": "1.15.0",
     "gatsby": "~5.13.3",
-    "gh-pages": "~4.0.0",
+    "gh-pages": "~6.1.1",
     "graphql": "~16.3.0",
     "graphql-request": "~4.1.0",
     "js-yaml": "~4.1.0",