chore(deps): update dependency webpack-dev-server to v5 [security]

Author: renovate[bot]

package.json

@@ -56,7 +56,7 @@
     "url-loader": "^2.3.0",
     "webpack": "^4.47.0",
     "webpack-cli": "^3.3.12",
-    "webpack-dev-server": "^3.11.3",
+    "webpack-dev-server": "^5.0.0",
     "webpack-merge": "^4.2.2",
     "webpackbar": "^4.0.0"
   },