fix(zentao): use correct `DecodeMapStruct` function (#7502)

diff --git a/backend/helpers/pluginhelper/api/model_api_helper.go b/backend/helpers/pluginhelper/api/model_api_helper.go
index dc41c69..3e35a7c 100644
--- a/backend/helpers/pluginhelper/api/model_api_helper.go
+++ b/backend/helpers/pluginhelper/api/model_api_helper.go
@@ -65,7 +65,7 @@
 
 func (self *ModelApiHelper[M]) Post(input *plugin.ApiResourceInput) (*plugin.ApiResourceOutput, errors.Error) {
 	model := new(M)
-	err := utils.DecodeMapStruct(input.Body, model, false)
+	err := DecodeMapStruct(input.Body, model, false)
 	if err != nil {
 		return nil, err
 	}
@@ -145,7 +145,7 @@
 			return nil, err
 		}
 	} else {
-		err = utils.DecodeMapStruct(input.Body, model, zeroFields)
+		err = DecodeMapStruct(input.Body, model, zeroFields)
 		if err != nil {
 			return nil, errors.BadInput.Wrap(err, fmt.Sprintf("faled to patch %s", self.modelName))
 		}
@@ -194,7 +194,7 @@
 	var req struct {
 		Data []*M `json:"data"`
 	}
-	err := utils.DecodeMapStruct(input.Body, &req, false)
+	err := DecodeMapStruct(input.Body, &req, false)
 	if err != nil {
 		return nil, err
 	}