chore: replace int32Ptr usage with ptr.To

Kubernetes-commit: e0f9914ef726bd5bcafcdadf5a6a0a6e92d9a885

examples/create-update-delete-deployment/main.go

@@ -32,6 +32,7 @@ import (
 	"k8s.io/client-go/tools/clientcmd"
 	"k8s.io/client-go/util/homedir"
 	"k8s.io/client-go/util/retry"
+	"k8s.io/utils/ptr"
 	//
 	// Uncomment to load all auth plugins
 	// _ "k8s.io/client-go/plugin/pkg/client/auth"
@@ -67,7 +68,7 @@ func main() {
 			Name: "demo-deployment",
 		},
 		Spec: appsv1.DeploymentSpec{
-			Replicas: int32Ptr(2),
+			Replicas: ptr.To[int32](2),
 			Selector: &metav1.LabelSelector{
 				MatchLabels: map[string]string{
 					"app": "demo",
@@ -130,7 +131,7 @@ func main() {
 			panic(fmt.Errorf("Failed to get latest version of Deployment: %v", getErr))
 		}
 
-		result.Spec.Replicas = int32Ptr(1)                           // reduce replica count
+		result.Spec.Replicas = ptr.To[int32](1)                      // reduce replica count
 		result.Spec.Template.Spec.Containers[0].Image = "nginx:1.13" // change nginx version
 		_, updateErr := deploymentsClient.Update(context.TODO(), result, metav1.UpdateOptions{})
 		return updateErr
@@ -174,5 +175,3 @@ func prompt() {
 	}
 	fmt.Println()
 }
-
-func int32Ptr(i int32) *int32 { return &i }