Update dependency webpack to v5

assets/package.json

@@ -20,7 +20,7 @@
     "mini-css-extract-plugin": "0.4.5",
     "optimize-css-assets-webpack-plugin": "4.0.3",
     "uglifyjs-webpack-plugin": "1.3.0",
-    "webpack": "4.4.0",
+    "webpack": "5.58.2",
     "webpack-cli": "2.1.5"
   }
 }