Update prost requirement from 0.10 to 0.11

Updates the requirements on [prost](https://github.com/tokio-rs/prost) to permit the latest version.
- [Release notes](https://github.com/tokio-rs/prost/releases)
- [Commits](tokio-rs/prost@v0.10.0...v0.11.0)

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

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

arrow-flight/Cargo.toml

@@ -31,7 +31,7 @@ arrow = { path = "../arrow", version = "16.0.0", default-features = false, featu
 base64 = { version = "0.13", default-features = false }
 tonic = { version = "0.7", default-features = false, features = ["transport", "codegen", "prost"] }
 bytes = { version = "1", default-features = false }
-prost = { version = "0.10", default-features = false }
+prost = { version = "0.11", default-features = false }
 prost-types = { version = "0.10.0", default-features = false, optional = true }
 prost-derive = { version = "0.10", default-features = false }
 tokio = { version = "1.0", default-features = false, features = ["macros", "rt", "rt-multi-thread"] }

integration-testing/Cargo.toml

@@ -37,7 +37,7 @@ async-trait = "0.1.41"
 clap = { version = "~3.1", features = ["derive", "env"] }
 futures = "0.3"
 hex = "0.4"
-prost = "0.10"
+prost = "0.11"
 serde = { version = "1.0", features = ["rc"] }
 serde_derive = "1.0"
 serde_json = { version = "1.0", features = ["preserve_order"] }