Update dependency copy-webpack-plugin to v14

Author: renovate[bot]

package.json

@@ -47,7 +47,7 @@
     "babel-preset-stage-0": "^6.24.1",
     "case-sensitive-paths-webpack-plugin": "^2.4.0",
     "clean-webpack-plugin": "^4.0.0",
-    "copy-webpack-plugin": "^12.0.2",
+    "copy-webpack-plugin": "^14.0.0",
     "cross-env": "^7.0.3",
     "css-loader": "5.2.7",
     "css-minimizer-webpack-plugin": "^7.0.0",