fix: turn allowCredentials to boolean (#3656)

* fix: turn `allowCredentials` to boolean

* chore: fmt

Author: EyalPazz

apis/v1/httproute_types.go

@@ -1371,7 +1371,7 @@ type HTTPCORSFilter struct {
 	// Support: Extended
 	//
 	// +optional
-	AllowCredentials *LowercaseTrue `json:"allowCredentials,omitempty"`
+	AllowCredentials TrueField `json:"allowCredentials,omitempty"`
 
 	// AllowMethods indicates which HTTP methods are supported for accessing the
 	// requested resource.

apis/v1/shared_types.go

@@ -764,11 +764,10 @@ type HeaderName string
 // +kubebuilder:validation:Pattern=`^([0-9]{1,5}(h|m|s|ms)){1,4}$`
 type Duration string
 
-// LowercaseTrue is a string value that can only be set to "true" (case
-// sensitive).
+// TrueField is a boolean value that can only be set to true
 //
 // +kubebuilder:validation:Enum=true
-type LowercaseTrue string
+type TrueField bool
 
 const (
 	// A textual representation of a numeric IP address. IPv4