Pod template names for the kubernetesExecutor should be specific to the airflow cluster

[adwk67]

Affected Stackable version

All that use kubernetesExecutor

Affected Apache Airflow version

All that use kubernetesExecutor

Current and expected behavior

It should be possible to run different clusters, both using the kubernetesExecutor, in the same namespace without clashes in the name of the pod template.

Possible solution

These constants should be combined with the cluster name to ensure uniqueness.

Additional context

No response

Environment

No response

Would you like to work on fixing this bug?

None