Use the new dataSourceRef field

Author: bswartz

client/go.mod

@@ -2,4 +2,4 @@ module github.com/kubernetes-csi/volume-data-source-validator/client
 
 go 1.15
 
-require k8s.io/apimachinery v0.21.0
+require k8s.io/apimachinery v0.22.0-rc.0

go.mod

@@ -1,10 +1,8 @@
 module github.com/kubernetes-csi/volume-data-source-validator
 
-go 1.15
+go 1.16
 
 require (
-	github.com/googleapis/gnostic v0.5.1 // indirect
-	github.com/hashicorp/golang-lru v0.5.4 // indirect
 	github.com/imdario/mergo v0.3.10 // indirect
 	github.com/kubernetes-csi/csi-lib-utils v0.9.1
 	github.com/kubernetes-csi/external-snapshotter/client/v4 v4.0.0
@@ -13,10 +11,10 @@ require (
 	github.com/onsi/gomega v1.10.2 // indirect
 	golang.org/x/oauth2 v0.0.0-20201208152858-08078c50e5b5 // indirect
 	google.golang.org/appengine v1.6.7 // indirect
-	k8s.io/api v0.21.0
-	k8s.io/apimachinery v0.21.0
-	k8s.io/client-go v0.21.0
-	k8s.io/klog/v2 v2.8.0
+	k8s.io/api v0.22.0-rc.0
+	k8s.io/apimachinery v0.22.0-rc.0
+	k8s.io/client-go v0.22.0-rc.0
+	k8s.io/klog/v2 v2.9.0
 )
 
 replace github.com/kubernetes-csi/volume-data-source-validator/client => ./client