fix(Dashboard): Removed gh-pages devDependencies from js-yaml library to silence dependabot

Author: JBBianchi

src/dashboard/Synapse.Dashboard/wwwroot/lib/js-yaml/package.json

@@ -55,7 +55,6 @@
     "codemirror": "^5.13.4",
     "eslint": "^7.0.0",
     "fast-check": "^2.8.0",
-    "gh-pages": "^3.1.0",
     "mocha": "^8.2.1",
     "nyc": "^15.1.0",
     "rollup": "^2.34.1",