Update kubernetes projects version in vendor to 1.12.1

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

@@ -149,12 +149,8 @@ func (in *ServiceReference) DeepCopyInto(out *ServiceReference) {
 	*out = *in
 	if in.Path != nil {
 		in, out := &in.Path, &out.Path
-		if *in == nil {
-			*out = nil
-		} else {
-			*out = new(string)
-			**out = **in
-		}
+		*out = new(string)
+		**out = **in
 	}
 	return
 }
@@ -248,21 +244,18 @@ func (in *Webhook) DeepCopyInto(out *Webhook) {
 	}
 	if in.FailurePolicy != nil {
 		in, out := &in.FailurePolicy, &out.FailurePolicy
-		if *in == nil {
-			*out = nil
-		} else {
-			*out = new(FailurePolicyType)
-			**out = **in
-		}
+		*out = new(FailurePolicyType)
+		**out = **in
 	}
 	if in.NamespaceSelector != nil {
 		in, out := &in.NamespaceSelector, &out.NamespaceSelector
-		if *in == nil {
-			*out = nil
-		} else {
-			*out = new(v1.LabelSelector)
-			(*in).DeepCopyInto(*out)
-		}
+		*out = new(v1.LabelSelector)
+		(*in).DeepCopyInto(*out)
+	}
+	if in.SideEffects != nil {
+		in, out := &in.SideEffects, &out.SideEffects
+		*out = new(SideEffectClass)
+		**out = **in
 	}
 	return
 }
@@ -282,21 +275,13 @@ func (in *WebhookClientConfig) DeepCopyInto(out *WebhookClientConfig) {
 	*out = *in
 	if in.URL != nil {
 		in, out := &in.URL, &out.URL
-		if *in == nil {
-			*out = nil
-		} else {
-			*out = new(string)
-			**out = **in
-		}
+		*out = new(string)
+		**out = **in
 	}
 	if in.Service != nil {
 		in, out := &in.Service, &out.Service
-		if *in == nil {
-			*out = nil
-		} else {
-			*out = new(ServiceReference)
-			(*in).DeepCopyInto(*out)
-		}
+		*out = new(ServiceReference)
+		(*in).DeepCopyInto(*out)
 	}
 	if in.CABundle != nil {
 		in, out := &in.CABundle, &out.CABundle