build(deps): update prost-types requirement from 0.12.4 to 0.13.1

Updates the requirements on [prost-types](https://github.com/tokio-rs/prost) to permit the latest version.
- [Release notes](https://github.com/tokio-rs/prost/releases)
- [Changelog](https://github.com/tokio-rs/prost/blob/master/CHANGELOG.md)
- [Commits](tokio-rs/prost@v0.12.4...v0.13.1)

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

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

proto/Cargo.toml

@@ -48,7 +48,7 @@ grpc = [
 prost = { version = "0.12.4", default-features = false, features = [
     "prost-derive",
 ] }
-prost-types = { version = "0.12.4", default-features = false }
+prost-types = { version = "0.13.1", default-features = false }
 tonic = { version = "0.11.0", optional = true }
 bytes = { version = "1.6.0", default-features = false, features = ["serde"] }
 serde = { version = "1.0.197", default-features = false, features = ["derive"] }