Implement RBAC for svc-bie-kafka in our in QA environment

[meganhicks]

Why: Kafka will not be able to connect and receive data.

User Story
As a VRO engineer, I want to update Kafka to use RBAC for authentication and authorization so that we remain compliant. The scope of this ticket is our dev, qa, and sandbox environments. Prod will be handled later, in a separate ticket [#2560].

Acceptance Criteria

• Kafka is using RBAC
• Late addition - possibly a new issue - We should ensure that our docs on bie-kafka service have been updated with the RBAC details, as well as any URL changes that we should reflect in the docs.

Notes about work

• See documentation here: https://github.com/department-of-veterans-affairs/bip-tooling-confluent/wiki/Streaming-app-authentication-and-authorization-with-Confluent-RBAC
• POCs are Milton Garcia and Darrell Neel
• Slack thread here: https://dsva.slack.com/archives/C04U8GESRT7/p1706727018289089

[Ponnia-M]

Below is a screenshot of a snippet confirming successful connection (Kafka topic messages) in QA environment.