build(deps): bump syn from 2.0.50 to 2.0.51 (#915)

Bumps [syn](https://github.com/dtolnay/syn) from 2.0.50 to 2.0.51.
- [Release notes](https://github.com/dtolnay/syn/releases)
- [Commits](dtolnay/syn@2.0.50...2.0.51)

---
updated-dependencies:
- dependency-name: syn
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Cargo.toml

@@ -60,7 +60,7 @@ async-stream = "0.3.5"
 async-trait = { version = "0.1.77" }
 crossbeam-channel = { version = "0.5.11" }
 
-syn = { version = "2.0.50", features = ["full"] }
+syn = { version = "2.0.51", features = ["full"] }
 proc-macro2 = { version = "1.0.78" }
 
 tracing = "0.1.40"