Add allowVolumeExpansion to Cinder CSI storage class (#4001)

Enable volume expansion for the Cinder CSI storage class.

Signed-off-by: Jan Dittrich <mail@jand.one>

Author: jan-di

addons/default-storage-class/storage-class.yaml

@@ -153,6 +153,7 @@ metadata:
   name: cinder-csi
 provisioner: cinder.csi.openstack.org
 volumeBindingMode: WaitForFirstConsumer
+allowVolumeExpansion: true
 ---
 apiVersion: storage.k8s.io/v1
 kind: StorageClass