Bump copy-webpack-plugin from 8.1.1 to 9.0.0

Bumps [copy-webpack-plugin](https://github.com/webpack-contrib/copy-webpack-plugin) from 8.1.1 to 9.0.0.
- [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/v8.1.1...v9.0.0)

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

package.json

@@ -65,7 +65,7 @@
     "buble-loader": "^0.5.1",
     "chaikin-smooth": "^1.0.4",
     "clean-css-cli": "5.3.0",
-    "copy-webpack-plugin": "^8.0.0",
+    "copy-webpack-plugin": "^9.0.0",
     "coverage-istanbul-loader": "^3.0.5",
     "coveralls": "3.1.0",
     "es-main": "^1.0.2",