[georgweiss]

Update of the Kafka client libs to 4.3.1.

Some APIs have changed (deprecated methods removed) since 3.x, so a few code changes were needed.

A wee bit of code cleanup is also included.

• Testing:

  • The feature has automated tests
  • Tests were run
  • If not, explain how you tested your changes

• Documentation:

  • The feature is documented
  • The documentation is up to date
  • Release notes:
    • Added an entry if the change is breaking or significant
    • Added an entry when adding a new feature

[sonarqubecloud]

Quality Gate failed

Failed conditions
3.9% Duplication on New Code (required ≤ 3%)

See analysis details on SonarQube Cloud