Update rdkafka requirement from 0.33.* to 0.34.* (#173)

Updates the requirements on [rdkafka](https://github.com/fede1024/rust-rdkafka) to permit the latest version.
- [Changelog](https://github.com/fede1024/rust-rdkafka/blob/master/changelog.md)
- [Commits](fede1024/rust-rdkafka@v0.33.0...v0.34.0)

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

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

Cargo.toml

@@ -40,7 +40,7 @@ ouroboros = "0.17"
 # Sql library for async impl
 sqlx = { version = "0.7.0", features = ["runtime-tokio-native-tls", "uuid", "json", "chrono"], optional = true }
 # Kafka library
-rdkafka = { version = "0.33.*", features = ["ssl-vendored"], optional = true }
+rdkafka = { version = "0.34.*", features = ["ssl-vendored"], optional = true }
 # Rabbit library
 lapin = { version = "2.1.1", optional = true }
 # Builder pattern