Bump jest from 26.6.3 to 27.0.4 in /client

Bumps [jest](https://github.com/facebook/jest) from 26.6.3 to 27.0.4.
- [Release notes](https://github.com/facebook/jest/releases)
- [Changelog](https://github.com/facebook/jest/blob/master/CHANGELOG.md)
- [Commits](jestjs/jest@v26.6.3...v27.0.4)

---
updated-dependencies:
- dependency-name: jest
  dependency-type: direct:development
  update-type: version-update:semver-major
...

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