Merge pull request #438 from andyzhangx/external-storage-test-v1.21

test: run external storage test with k8s 1.21 suites

Author: andyzhangx

deploy/example/storageclass-blobfuse.yaml

@@ -6,7 +6,7 @@ metadata:
 provisioner: blob.csi.azure.com
 parameters:
   skuName: Standard_LRS  # available values: Standard_LRS, Premium_LRS, Standard_GRS, Standard_RAGRS
-reclaimPolicy: Retain  # if set as "Delete" container would be removed after pvc deletion
+reclaimPolicy: Delete
 volumeBindingMode: Immediate
 mountOptions:
   - -o allow_other