K8s: Fix hack/update-codegen (#91867)

pkg/apis/featuretoggle/v0alpha1/zz_generated.openapi.go

@@ -5,8 +5,6 @@
 
 // Code generated by openapi-gen. DO NOT EDIT.
 
-// This file was autogenerated by openapi-gen. Do not edit it manually!
-
 package v0alpha1
 
 import (
@@ -192,6 +190,13 @@ func schema_pkg_apis_featuretoggle_v0alpha1_FeatureSpec(ref common.ReferenceCall
 							Format:      "",
 						},
 					},
+					"expression": {
+						SchemaProps: spec.SchemaProps{
+							Description: "Expression to determine if the flag is enabled by default",
+							Type:        []string{"string"},
+							Format:      "",
+						},
+					},
 				},
 				Required: []string{"description", "stage"},
 			},