Support AWS IAM Authentication for Kafka components

[famarting]

Describe the feature

Followup of #2882

AWS Managed Kafka Service supports authenticating Kafka clients using IAM, additionally MSK Serverless only supports authentication via IAM https://docs.aws.amazon.com/msk/latest/developerguide/serverless.html

From its docs:

MSK Serverless requires IAM access control for all clusters. Apache Kafka access control lists (ACLs) are not supported. 

The request is to add support for AWS IAM Authentication to the Kafka components. Which should be possible using this library https://github.com/aws/aws-msk-iam-sasl-signer-go/tree/main

If everyone agrees I can contribute my implementation

Release Note

RELEASE NOTE: ADD Support AWS IAM with AWS Kafka clusters

RELEASE NOTE: