Bump copy-webpack-plugin from 6.0.2 to 6.0.3

Bumps [copy-webpack-plugin](https://github.com/webpack-contrib/copy-webpack-plugin) from 6.0.2 to 6.0.3.
- [Release notes](https://github.com/webpack-contrib/copy-webpack-plugin/releases)
- [Changelog](https://github.com/webpack-contrib/copy-webpack-plugin/blob/master/CHANGELOG.md)
- [Commits](https://github.com/webpack-contrib/copy-webpack-plugin/compare/v6.0.2...v6.0.3)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

package.json

@@ -44,7 +44,7 @@
     "babel-loader": "^8.1.0",
     "babel-plugin-module-resolver": "^4.0.0",
     "clean-webpack-plugin": "^3.0.0",
-    "copy-webpack-plugin": "^6.0.2",
+    "copy-webpack-plugin": "^6.0.3",
     "copyfiles": "^2.3.0",
     "css-loader": "^3.5.3",
     "eslint": "^6.8.0",