chore(deps): bump expect from 28.1.3 to 29.2.1 in /slides/snippets (#260

)

Bumps [expect](https://github.com/facebook/jest/tree/HEAD/packages/expect) from 28.1.3 to 29.2.1.
- [Release notes](https://github.com/facebook/jest/releases)
- [Changelog](https://github.com/facebook/jest/blob/main/CHANGELOG.md)
- [Commits](https://github.com/facebook/jest/commits/v29.2.1/packages/expect)

---
updated-dependencies:
- dependency-name: expect
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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