PersistentVolumeClaim resizing fails with "volume plugin does not support resize" on vSphere

Issue

• When I was trying to expand the existing PVC, I've got an error and this happens even if the AllowVolumeExpansion flag is set to TRUE in the StorageClass:

  Could not save persistent volume claim 'jenkins'
  Reason: persistentvolumeclaims "jenkins" is forbidden: volume plugin does not support resize"
  [..]
  $ oc describe sc vsphere-standard
  Name:                  vsphere-standard
  IsDefaultClass:        Yes
  Annotations:           storageclass.kubernetes.io/is-default-class=true
  Provisioner:           kubernetes.io/vsphere-volume
  Parameters:            datastore=EXAMPLE_Datastore
  AllowVolumeExpansion:  True
  MountOptions:          <none>
  ReclaimPolicy:         Delete
  VolumeBindingMode:     Immediate
  Events:                <none>