build(deps): bump prost from 0.11.9 to 0.12.4

Bumps [prost](https://github.com/tokio-rs/prost) from 0.11.9 to 0.12.4.
- [Release notes](https://github.com/tokio-rs/prost/releases)
- [Commits](tokio-rs/prost@v0.11.9...v0.12.4)

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

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

Author: dependabot[bot]

Cargo.lock

@@ -18,7 +18,7 @@ json = ["base64", "serde"]
 
 [dependencies]
 base64 = { version = "^0.21", optional = true }
-prost = "^0.11"
+prost = "^0.12"
 serde = { version = "^1.0.197", features = ["derive"], optional = true }
 
 [build-dependencies]

proto/Cargo.toml

@@ -14,7 +14,7 @@ publish = false
 env_logger = "^0.10.1"
 futures = "^0.3.30"
 log = "^0.4.21"
-prost = "^0.11"
+prost = "^0.12"
 structopt = "^0.3.26"
 tink-aead = "^0.2"
 tink-core = { version = "^0.2", features = [