Update dependency webpack-dev-server to v5 [SECURITY]

Author: renovate[bot]

jarviz-graph/package.json

@@ -84,7 +84,7 @@
     "url-loader": "^2.1.0",
     "webpack": "^4.39.2",
     "webpack-cli": "^3.3.7",
-    "webpack-dev-server": "^3.8.0",
+    "webpack-dev-server": "^5.2.1",
     "webpack-merge": "^4.2.1"
   }
 }