chore(deps): update dependency gh-pages to v6 (#249)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

package-lock.json

@@ -36,7 +36,7 @@
     "@fortawesome/react-fontawesome": "0.2.0",
     "chroma-js": "2.4.2",
     "classnames": "2.3.2",
-    "gh-pages": "5.0.0",
+    "gh-pages": "6.0.0",
     "husky": "8.0.3",
     "jquery": "3.7.1",
     "lodash": "4.17.21",