Update storageclass version to v1 in examples

examples/storage/cassandra/cassandra-statefulset.yaml

@@ -90,7 +90,7 @@ spec:
       storageClassName: fast
 ---
 kind: StorageClass
-apiVersion: storage.k8s.io/v1beta1
+apiVersion: storage.k8s.io/v1
 metadata:
   name: fast
 provisioner: kubernetes.io/gce-pd

examples/volumes/portworx/portworx-volume-sc-high.yaml

 kind: StorageClass
-apiVersion: storage.k8s.io/v1beta1
+apiVersion: storage.k8s.io/v1
 metadata:
    name: portworx-io-priority-high
 provisioner: kubernetes.io/portworx-volume

examples/volumes/scaleio/sc.yaml

 kind: StorageClass
-apiVersion: storage.k8s.io/v1beta1
+apiVersion: storage.k8s.io/v1
 metadata:
   name: sio-small
 provisioner: kubernetes.io/scaleio

examples/volumes/vsphere/simple-storageclass.yaml

 kind: StorageClass
-apiVersion: storage.k8s.io/v1beta1
+apiVersion: storage.k8s.io/v1
 metadata:
   name: thin-disk
 provisioner: kubernetes.io/vsphere-volume

examples/volumes/vsphere/vsphere-volume-sc-fast.yaml

 kind: StorageClass
-apiVersion: storage.k8s.io/v1beta1
+apiVersion: storage.k8s.io/v1
 metadata:
   name: fast
 provisioner: kubernetes.io/vsphere-volume

examples/volumes/vsphere/vsphere-volume-sc-vsancapabilities-with-datastore.yaml

 kind: StorageClass
-apiVersion: storage.k8s.io/v1beta1
+apiVersion: storage.k8s.io/v1
 metadata:
   name: fast
 provisioner: kubernetes.io/vsphere-volume

examples/volumes/vsphere/vsphere-volume-sc-vsancapabilities.yaml

 kind: StorageClass
-apiVersion: storage.k8s.io/v1beta1
+apiVersion: storage.k8s.io/v1
 metadata:
   name: fast
 provisioner: kubernetes.io/vsphere-volume

examples/volumes/vsphere/vsphere-volume-sc-with-datastore.yaml

 kind: StorageClass
-apiVersion: storage.k8s.io/v1beta1
+apiVersion: storage.k8s.io/v1
 metadata:
   name: fast
 provisioner: kubernetes.io/vsphere-volume