Add support for persistentVolumeClaimRetentionPolicy field in statefulset mode

[dferrochio]

Component(s)

collector

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

I'm not able to change the persistentVolumeClaimRetentionPolicy field in statefulset mode. I need to change the default policy to delete the PVC's when the statefulset is scaled.

Describe the solution you'd like

Solution might be an optional configuration section for the statefulset specs like this:

apiVersion: opentelemetry.io/v1beta1
kind: OpenTelemetryCollector
spec:
  mode: statefulset
  statefulset:
    spec:
      persistentVolumeClaimRetentionPolicy:
        whenDeleted: Retain
        whenScaled: Delete

Describe alternatives you've considered

No response

Additional context

No response