chore(deps): bump ws and karma

Bumps [ws](https://github.com/websockets/ws) to 7.5.11 and updates ancestor dependencies [ws](https://github.com/websockets/ws) and [karma](https://github.com/karma-runner/karma). These dependencies need to be updated together.


Updates `ws` from 7.4.6 to 7.5.11
- [Release notes](https://github.com/websockets/ws/releases)
- [Commits](websockets/ws@7.4.6...7.5.11)

Updates `ws` from 8.18.1 to 8.21.0
- [Release notes](https://github.com/websockets/ws/releases)
- [Commits](websockets/ws@7.4.6...7.5.11)

Updates `ws` from 8.18.3 to 8.21.0
- [Release notes](https://github.com/websockets/ws/releases)
- [Commits](websockets/ws@7.4.6...7.5.11)

Updates `karma` from 6.3.4 to 6.3.20
- [Release notes](https://github.com/karma-runner/karma/releases)
- [Changelog](https://github.com/karma-runner/karma/blob/master/CHANGELOG.md)
- [Commits](karma-runner/karma@v6.3.4...v6.3.20)

---
updated-dependencies:
- dependency-name: ws
  dependency-version: 7.5.11
  dependency-type: indirect
- dependency-name: ws
  dependency-version: 8.21.0
  dependency-type: indirect
- dependency-name: ws
  dependency-version: 8.21.0
  dependency-type: indirect
- dependency-name: karma
  dependency-version: 6.3.20
  dependency-type: direct:development
...

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Author: dependabot[bot]