Bumps [prost-types](https://github.com/tokio-rs/prost) from 0.11.6 to 0.11.8.
- [Release notes](https://github.com/tokio-rs/prost/releases)
- [Commits](https://github.com/tokio-rs/prost/compare/v0.11.6...v0.11.8)

---
updated-dependencies:
- dependency-name: prost-types
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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