PVC name repeated too long

[muicoder]

Is your feature request related to a problem? Please describe.

Describe the solution you'd like

Describe alternatives you've considered

What version of redis-operator are you using?

redis-operator version: v0.14.0

Additional context

cr.Name: test-cluster

pvcName:
  Origin: test-cluster-follower-test-cluster-follower-0
  Improved: data-test-cluster-follower-0

[drivebyer]

We could add an optional parameter to allow users to customize the PVC name prefix. Such as operator environment.