Support for awsRoleArn when using IAM

[ompraash]

Issue submitter TODO list

• I've searched for an already existing issues here
• I'm running a supported version of the application which is listed here and the feature is not present there

Is your proposal related to a problem?

In the current scenario IAM connectivity to MSK only supports awsProfileName. As per MSK IAM Auth library, awsRoleArn is supported.

kafka:
  clusters:
    - name: local
      bootstrapServers: <KAFKA_URL>
      properties:
        security.protocol: SASL_SSL
        sasl.mechanism: AWS_MSK_IAM
        sasl.client.callback.handler.class: software.amazon.msk.auth.iam.IAMClientCallbackHandler
        sasl.jaas.config: software.amazon.msk.auth.iam.IAMLoginModule required awsProfileName="<PROFILE_NAME>";

In the documentation, it does not mention use of IAM Role.

Describe the feature you're interested in

Allow support for awsRoleArn similar to awsProfileName thus allowing to automatically trust Role ARN.

Describe alternatives you've considered

No response

Version you're running

1.0.0

Additional context

No response

[github-actions]

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