BREAKING CHANGE: Update dependency webpack to v5

Author: renovate-bot

package.json

@@ -61,7 +61,7 @@
     "style-loader": "1.3.0",
     "uglifyjs-webpack-plugin": "1.3.0",
     "url-loader": "4.1.1",
-    "webpack": "4.44.2",
+    "webpack": "5.1.3",
     "webpack-dev-server": "3.11.0",
     "webpack-manifest-plugin": "2.2.0",
     "whatwg-fetch": "3.4.1",