test: add e2e test for mountOptions support in DeleteVolume

Makefile

@@ -151,6 +151,8 @@ endif
 .PHONY: install-nfs-server
 install-nfs-server:
 	kubectl apply -f ./deploy/example/nfs-provisioner/nfs-server.yaml
+	kubectl delete secret mount-options --ignore-not-found
+	kubectl create secret generic mount-options --from-literal mountOptions="nfsvers=4.1"
 
 .PHONY: install-helm
 install-helm:

test/e2e/e2e_suite_test.go

@@ -47,6 +47,8 @@ var (
 	defaultStorageClassParameters = map[string]string{
 		"server": "nfs-server.default.svc.cluster.local",
 		"share":  "/",
+		"csi.storage.k8s.io/provisioner-secret-name":      "mount-options",
+		"csi.storage.k8s.io/provisioner-secret-namespace": "default",
 	}
 	controllerServer *nfs.ControllerServer
 )