Dependency issue with clients/cloud/csharp on Mac

**Description**
Running this client was not possible on macosx due to the following error:
`Unhandled exception. System.DllNotFoundException: Failed to load the librdkafka native library.`
This occurs even after `brew install librdkafka`

**Troubleshooting**
Related issues: https://github.com/confluentinc/confluent-kafka-dotnet/issues/1005
Seems Confluent.Kafka 1.8.2 has a dependency which is not included.
Installing with brew did not resolve this.

Bumping the version of Confluent.Kafka to 1.9.2 resolved this issue.

**Environment**
- GitHub branch: 7.5.2-post
- Operating System: MacOS 14.5 (23F79)
- Version of Docker: N/A
- Version of Docker Compose: N/A