Bump karma-webpack from 4.0.2 to 5.0.0
Bump karma-webpack from 4.0.2 to 5.0.0

Bumps [karma-webpack](https://github.com/webpack-contrib/karma-webpack) from 4.0.2 to 5.0.0.
- [Release notes](https://github.com/webpack-contrib/karma-webpack/releases)
- [Changelog](https://github.com/ryanclark/karma-webpack/blob/master/CHANGELOG.md)
- [Commits](https://github.com/webpack-contrib/karma-webpack/compare/v4.0.2...v5.0.0)

Signed-off-by: dependabot-preview[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@dependabot.com>
camptocamp/ngeo,camptocamp/ngeo,camptocamp/ngeo,camptocamp/ngeo,camptocamp/ngeo