fix: Keeping the IP Range field as optional

Author: nairashu

crd/overlayextensionconfig/api/v1alpha1/overlayextensionconfig_types.go

@@ -34,6 +34,7 @@ type OverlayExtensionConfigList struct {
 // +kubebuilder:validation:XValidation:rule="!has(oldSelf.extensionIPRange) || has(self.extensionIPRange)", message="ExtensionIPRange is required once set"
 type OverlayExtensionConfigSpec struct {
 	// ExtensionIPRange field defines a CIDR that should be able to reach routing domain ip addresses.
+	// +kubebuilder:validation:Optional
 	// +kubebuilder:validation:XValidation:rule="self == oldSelf",message="Value is immutable"
 	// +kubebuilder:validation:MaxLength=43
 	// 43 is max length of IPv6 CIDR string