Mark InstanceType field as deprecated with kubebuilder annotation

Author: moko-poi

config/crd/bases/infrastructure.cluster.x-k8s.io_awsmanagedmachinepools.yaml

@@ -933,7 +933,7 @@ spec:
               instanceType:
                 description: |-
                   InstanceType specifies the AWS instance type.
-                  This field is deprecated. Use InstanceTypes instead.
+                  Deprecated: Use InstanceTypes instead.
                 type: string
               instanceTypes:
                 description: |-

exp/api/v1beta2/awsmanagedmachinepool_types.go

@@ -177,8 +177,9 @@ type AWSManagedMachinePoolSpec struct {
 	DiskSize *int32 `json:"diskSize,omitempty"`
 
 	// InstanceType specifies the AWS instance type.
-	// This field is deprecated. Use InstanceTypes instead.
+	// Deprecated: Use InstanceTypes instead.
 	// +optional
+	// +kubebuilder:validation:Deprecated
 	InstanceType *string `json:"instanceType,omitempty"`
 
 	// InstanceTypes specifies a list of AWS instance types for the node group.