Bump copy-webpack-plugin from 11.0.0 to 12.0.2 in /www

Bumps [copy-webpack-plugin](https://github.com/webpack-contrib/copy-webpack-plugin) from 11.0.0 to 12.0.2.
- [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](webpack-contrib/copy-webpack-plugin@v11.0.0...v12.0.2)

---
updated-dependencies:
- dependency-name: copy-webpack-plugin
  dependency-type: direct:development
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>