chore(deps): Bump fluvio in /embeds/client-examples/rust

Bumps [fluvio](https://github.com/infinyon/fluvio) from 0.22.2 to 0.23.0.
- [Release notes](https://github.com/infinyon/fluvio/releases)
- [Changelog](https://github.com/infinyon/fluvio/blob/master/CHANGELOG.md)
- [Commits](https://github.com/infinyon/fluvio/commits)

---
updated-dependencies:
- dependency-name: fluvio
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>