chore(deps): update dependency gh-pages to v2.2.0

Author: renovate-bot

package.json

@@ -64,7 +64,7 @@
     "eslint": "6.0.1",
     "eslint-config-mo": "0.5.2",
     "eslint-formatter-friendly": "^7.0.0",
-    "gh-pages": "2.1.1",
+    "gh-pages": "2.2.0",
     "globby": "^10.0.1",
     "husky": "3.0.0",
     "lerna": "^3.16.4",