Update k8s dependency version to 1.21

Signed-off-by: xinyanwu409 <wxinyan@vmware>

vendor/k8s.io/api/extensions/v1beta1/zz_generated.deepcopy.go

@@ -916,6 +916,11 @@ func (in *NetworkPolicyPort) DeepCopyInto(out *NetworkPolicyPort) {
 		*out = new(intstr.IntOrString)
 		**out = **in
 	}
+	if in.EndPort != nil {
+		in, out := &in.EndPort, &out.EndPort
+		*out = new(int32)
+		**out = **in
+	}
 	return
 }
 
@@ -1272,6 +1277,11 @@ func (in *RollingUpdateDaemonSet) DeepCopyInto(out *RollingUpdateDaemonSet) {
 		*out = new(intstr.IntOrString)
 		**out = **in
 	}
+	if in.MaxSurge != nil {
+		in, out := &in.MaxSurge, &out.MaxSurge
+		*out = new(intstr.IntOrString)
+		**out = **in
+	}
 	return
 }