Bump tmp and karma

Bumps [tmp](https://github.com/raszi/node-tmp) to 0.2.4 and updates ancestor dependency [karma](https://github.com/karma-runner/karma). These dependencies need to be updated together.


Updates `tmp` from 0.2.1 to 0.2.4
- [Changelog](https://github.com/raszi/node-tmp/blob/master/CHANGELOG.md)
- [Commits](raszi/node-tmp@v0.2.1...v0.2.4)

Updates `karma` from 6.1.1 to 6.4.4
- [Release notes](https://github.com/karma-runner/karma/releases)
- [Changelog](https://github.com/karma-runner/karma/blob/master/CHANGELOG.md)
- [Commits](karma-runner/karma@v6.1.1...v6.4.4)

---
updated-dependencies:
- dependency-name: tmp
  dependency-version: 0.2.4
  dependency-type: indirect
- dependency-name: karma
  dependency-version: 6.4.4
  dependency-type: direct:development
...

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Author: dependabot[bot]