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

Author: renovate[bot]

package.json

@@ -63,7 +63,7 @@
     "vue-template-compiler": "^2.6.11",
     "webpack": "^4.46.0",
     "webpack-cli": "^3.3.12",
-    "webpack-dev-server": "^3.11.0",
+    "webpack-dev-server": "^5.0.0",
     "webpack-merge": "^4.2.2"
   },
   "engines": {