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

Updates the requirements on [prost-build](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-build
  dependency-type: direct:production
...

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

proto-compiler/Cargo.toml

@@ -10,7 +10,7 @@ publish = false
 
 [dependencies]
 walkdir = { version = "2.5.0" }
-prost-build = { version = "0.12.4" }
+prost-build = { version = "0.13.1" }
 tempfile = { version = "3.10.1" }
 regex = { "version" = "1.10.4" }
 # Use of native-tls-vendored should build vendored openssl, which is required for Alpine build