Bump rich from 13.8.0 to 13.9.4

Bumps [rich](https://github.com/Textualize/rich) from 13.8.0 to 13.9.4.
- [Release notes](https://github.com/Textualize/rich/releases)
- [Changelog](https://github.com/Textualize/rich/blob/master/CHANGELOG.md)
- [Commits](Textualize/rich@v13.8.0...v13.9.4)

---
updated-dependencies:
- dependency-name: rich
  dependency-type: indirect
  update-type: version-update:semver-minor
...

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Author: dependabot[bot]