Update prost-build requirement from =0.11.2 to =0.11.3 (apache#3225)

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)
- [Commits](tokio-rs/prost@v0.11.2...v0.11.3)

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

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

arrow-flight/Cargo.toml

@@ -50,7 +50,7 @@ flight-sql-experimental = ["prost-types"]
 # Pin specific version of the tonic-build dependencies to avoid auto-generated
 # (and checked in) arrow.flight.protocol.rs from changing
 proc-macro2 = { version = "=1.0.47", default-features = false }
-prost-build = { version = "=0.11.2", default-features = false }
+prost-build = { version = "=0.11.3", default-features = false }
 tonic-build = { version = "=0.8.3", default-features = false, features = ["transport", "prost"] }
 
 [[example]]