[FEATURE] Auto-cleanup PVCs

[RiRa12621]

Is your feature request related to a problem?

Following the principles of least privileges, we would like to enable devs to create their own clusters, however, we would like to not allow them to delete PVCs.

What solution would you like?

There should be an option like cleanUpPv as bool that makes the operator clean up PVCs on its own without deleting them manually.

What alternatives have you considered?

Adding a webhook, but that's certainly not as clean

Do you have any additional context?

No, happy to share more upon request.

Happy to give the implementation a shot, if this is something maintainers feel is worth implementing.