Bumps [karma](https://github.com/karma-runner/karma) from 6.1.1 to 6.2.0.
- [Release notes](https://github.com/karma-runner/karma/releases)
- [Changelog](https://github.com/karma-runner/karma/blob/master/CHANGELOG.md)
- [Commits](https://github.com/karma-runner/karma/compare/v6.1.1...v6.2.0)
Signed-off-by: dependabot[bot] <support@github.com>