build(deps): bump prost-types in /tensorboard/data/server

Bumps [prost-types](https://github.com/tokio-rs/prost) from 0.7.0 to 0.8.0.
- [Release notes](https://github.com/tokio-rs/prost/releases)
- [Commits](tokio-rs/prost@v0.7.0...v0.8.0)

---
updated-dependencies:
- dependency-name: prost-types
  dependency-type: direct:production
...

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

Author: dependabot[bot]

tensorboard/data/server/Cargo.lock

@@ -36,7 +36,7 @@ env_logger = "0.8.2"
 futures-core = "0.3.12"
 log = "0.4.11"
 prost = "0.7.0"
-prost-types = "0.7.0"
+prost-types = "0.8.0"
 rand = "0.7.3"
 rand_chacha = "0.2.2"
 rayon = "1.5.0"