build(deps-dev): bump karma-webpack from 3.0.0 to 3.0.4
build(deps-dev): bump karma-webpack from 3.0.0 to 3.0.4

Bumps [karma-webpack](https://github.com/webpack-contrib/karma-webpack) from 3.0.0 to 3.0.4.
- [Release notes](https://github.com/webpack-contrib/karma-webpack/releases)
- [Changelog](https://github.com/webpack-contrib/karma-webpack/blob/master/CHANGELOG.md)
- [Commits](https://github.com/webpack-contrib/karma-webpack/compare/v3.0.0...v3.0.4)

Signed-off-by: dependabot[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@dependabot.com>
wawyed/ng2,ui-router/angular,ui-router/ng2,wawyed/ng2,ui-router/angular,ui-router/angular,wawyed/ng2,ui-router/angular,ui-router/ng2