LTS 2023 - Kafka Upgrade

The Kafka version we use on the LTS 2023 will come to EOL during the LTS 2023 lifetime.

We want to update to the latest version supported on AWS (currently 3.2.x): https://docs.aws.amazon.com/msk/latest/developerguide/supported-kafka-versions.html

This means:

• updating the Kafka client version inside Nuxeo Server
• updating the Kafka cluster version we use in our CI

We also want to check/validate that:

• with the newer version of the Kafka client, it's working with an older cluster version (or not)
• with the newer version of the Kafka client, it's working with an even newer cluster version (currently 3.3.x)
  => Everything can be tested on our CI