Bump karma-cli from 1.0.1 to 2.0.0 in /angular/events

Bumps [karma-cli](https://github.com/karma-runner/karma-cli) from 1.0.1 to 2.0.0.
- [Release notes](https://github.com/karma-runner/karma-cli/releases)
- [Changelog](https://github.com/karma-runner/karma-cli/blob/master/CHANGELOG.md)
- [Commits](karma-runner/karma-cli@v1.0.1...v2.0.0)

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

Author: dependabot-preview[bot]