Upgrade protobuf as the current version has security vulnerability
To change kafka connector dependency, we only need to update this version number config.
TODO: figure out a way to inject kafka dependency instead of explicitly setting the kafka module dependency -->
<kafka.version>2.0</kafka.version>
- <protobuf.version>3.12.0</protobuf.version>
+ <protobuf.version>3.19.2</protobuf.version>
<grpc.version>1.41.0</grpc.version>
<!-- Checkstyle violation prop.-->
