Update prost-derive requirement from 0.11 to 0.12

Updates the requirements on [prost-derive](https://github.com/tokio-rs/prost) to permit the latest version.
- [Release notes](https://github.com/tokio-rs/prost/releases)
- [Commits](tokio-rs/prost@v0.11.0...v0.12.0)

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

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

datafusion-examples/Cargo.toml

@@ -48,7 +48,7 @@ mimalloc = { version = "0.1", default-features = false }
 num_cpus = "1.13.0"
 object_store = { version = "0.7.0", features = ["aws"] }
 prost = { version = "0.11", default-features = false }
-prost-derive = { version = "0.11", default-features = false }
+prost-derive = { version = "0.12", default-features = false }
 serde = { version = "1.0.136", features = ["derive"] }
 serde_json = "1.0.82"
 tempfile = "3"