build(deps): update tonic-build requirement from 0.9.2 to 0.12.1

Updates the requirements on [tonic-build](https://github.com/hyperium/tonic) to permit the latest version.
- [Release notes](https://github.com/hyperium/tonic/releases)
- [Changelog](https://github.com/hyperium/tonic/blob/master/CHANGELOG.md)
- [Commits](hyperium/tonic@v0.9.2...v0.12.1)

---
updated-dependencies:
- dependency-name: tonic-build
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>

src/proto/Cargo.toml

@@ -15,4 +15,4 @@ serde = { version = "1.0", features = ["derive"] }
 serde_json = {workspace=true}
 tonic = {workspace=true}
 [build-dependencies]
-tonic-build = "0.9.2"
+tonic-build = "0.12.1"