rpk consume _redpanda.audit_log creates a loop

[JFlath]

Version & Environment

Redpanda version: (use rpk version):
24.1.9

What went wrong?

Consuming the audit log continuously (e.g. rpk consume _redpanda.audit_log -o end -g foo to tail) generates a continual stream of audit events that are then read, generating further events, etc.

What should have happened instead?

A single event should be audited

How to reproduce the issue?

On any given cluster, run rpk consume _redpanda.audit_log -o end -g foo (here -o end just means consume from now and keep consuming)
Observe that constant events are generated referencing your current user reading the audit topic.

Additional information

https://redpandadata.slack.com/archives/C01ND4SVB6Z/p1723205917108039

JIRA Link: CORE-6839