NiFi clustering without ZooKeeper

[malthe]

Is your feature request related to a problem?

NiFi 2.0.0 introduces new capabilities leveraging Kubernetes ConfigMaps and Leases to support clustering without the need for ZooKeeper.

We should leverage this capability to simplify the deployment.

Describe the solution you'd like to see

See https://exceptionfactory.com/posts/2024/08/10/bringing-kubernetes-clustering-to-apache-nifi/ for additional background and motivation.

Describe alternatives you've considered

No response

Additional context

No response