Update webpack packages

[MAILPOET-2953]

package.json

@@ -115,8 +115,8 @@
     "babel-plugin-typescript-to-proptypes": "^1.2.1",
     "chai": "^4.2.0",
     "chai-jq": "0.0.9",
-    "clean-webpack-plugin": "^1.0.0",
+    "clean-webpack-plugin": "^3.0.0",
-    "copy-webpack-plugin": "^5.1.1",
+    "copy-webpack-plugin": "^6.0.2",
     "cross-env": "^5.1.5",
     "eslint": "^6.8.0",
     "eslint-config-airbnb": "^18.0.1",
@@ -145,11 +145,11 @@
     "stylelint": "^13.5.0",
     "stylelint-order": "^4.1.0",
     "stylelint-scss": "^3.17.2",
-    "terser-webpack-plugin": "^1.4.3",
+    "terser-webpack-plugin": "^3.0.3",
     "ts-loader": "^7.0.1",
     "typescript": "^3.8.2",
     "webpack": "^4.43.0",
-    "webpack-cli": "^3.2.1",
+    "webpack-cli": "^3.3.11",
-    "webpack-manifest-plugin": "^2.0.4"
+    "webpack-manifest-plugin": "^2.2.0"
   }
 }

webpack.config.js

@@ -1,6 +1,6 @@
 const webpack = require('webpack');
 const webpackManifestPlugin = require('webpack-manifest-plugin');
-const webpackCleanPlugin = require('clean-webpack-plugin');
+const { CleanWebpackPlugin } = require('clean-webpack-plugin');
 const webpackTerserPlugin = require('terser-webpack-plugin');
 const webpackCopyPlugin = require('copy-webpack-plugin');
 const path = require('path');
@@ -59,9 +59,7 @@ const baseConfig = {
     fs: 'empty'
   },
   plugins: [
-    new webpackCleanPlugin([
+    new CleanWebpackPlugin(),
-      './assets/dist/js/*',
-    ]),
   ],
   module: {
     rules: [
@@ -205,12 +203,14 @@ const adminConfig = {
   plugins: [
     ...baseConfig.plugins,
 
-    new webpackCopyPlugin([
+    new webpackCopyPlugin({
+      patterns: [
         {
           from: 'node_modules/tinymce/skins/ui/oxide',
           to: 'skins/ui/oxide'
         },
-    ])
+      ],
+    }),
   ],
   optimization: {
     runtimeChunk: {