Parallel Consumer cannot run on Java 24

[jvissers]

This project doesn't owe me/us anything, but I feel at this point it is justified to raise an issue for this.

Effectively this is also the subject of this discussion #848 - which hasn't seen any traction yet. Essentially what this probably boils down to, is whether Parallel Consumer will be able to run on Kafka Client 3.9.1 - when that becomes available. That version will, for one, have the removal of the Security Manager (See, apache/kafka#19221 and apache/kafka#19368).

The fact that parallel consumer, now only uses Kafka 3.7.1 is already kind of a problem - as 3.9.0 has been out there for quite some time. At present, we are using Kafka clients 3.8.1 as a 4th party dependency through Helidon MP 4.1.6.

So the bottom-line is:

• parallel consumer should probably bump its dependencies to Kafka client version 3.9.0
• the moment Kafka client version 3.9.1 becomes available, we'd want to be able to use that version - and have support for Java 24.