Update dependency webpack to v5

Author: renovate-bot

package.json

@@ -129,7 +129,7 @@
     "pretty-quick": "2.0.2",
     "sass-loader": "8.0.2",
     "style-loader": "1.3.0",
-    "webpack": "4.46.0",
+    "webpack": "5.39.0",
     "webpack-cli": "4.7.2",
     "webpack-dev-server": "3.11.2",
     "optimize-css-assets-webpack-plugin": "5.0.6",