Update dependencies

Author: olivierlemasle

go.mod

@@ -7,17 +7,17 @@ require (
 	github.com/golang/protobuf v1.4.3
 	github.com/grpc-ecosystem/go-grpc-middleware v1.2.2
 	github.com/hashicorp/go-uuid v1.0.2
-	github.com/kubernetes-csi/csi-lib-utils v0.9.0
-	github.com/kubernetes-csi/csi-test/v4 v4.0.2
+	github.com/kubernetes-csi/csi-lib-utils v0.9.1
+	github.com/kubernetes-csi/csi-test/v4 v4.1.0
 	github.com/xanzy/go-cloudstack/v2 v2.9.0
 	go.uber.org/zap v1.16.0
-	golang.org/x/text v0.3.4
-	google.golang.org/grpc v1.34.0
+	golang.org/x/text v0.3.5
+	google.golang.org/grpc v1.36.0
 	gopkg.in/gcfg.v1 v1.2.3
 	gopkg.in/warnings.v0 v0.1.2 // indirect
-	k8s.io/api v0.20.1
-	k8s.io/apimachinery v0.20.1
-	k8s.io/client-go v0.20.1
-	k8s.io/mount-utils v0.20.1
-	k8s.io/utils v0.0.0-20201110183641-67b214c5f920
+	k8s.io/api v0.20.4
+	k8s.io/apimachinery v0.20.4
+	k8s.io/client-go v0.20.4
+	k8s.io/mount-utils v0.20.4
+	k8s.io/utils v0.0.0-20210111153108-fddb29f9d009
 )