build(deps): update tonic requirement in /src-tauri

Updates the requirements on [tonic](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@v0.11.0...v0.12.1)

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

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

src-tauri/Cargo.toml

@@ -30,7 +30,7 @@ semver = "1.0.16"
 libspeedupdate = { git = "https://github.com/ludea/speedupdate-rs" }
 libloading = "0.8"
 prost = "0.12"
-tonic = "0.11.0"
+tonic = "0.12.1"
 tokio-stream = "0.1"
 
 tauri-plugin-shell = "2.0.0-beta.7"