fix: Add a missing annotation (higress-group#524)

Author: CH3CHO

backend/sdk/src/main/java/com/alibaba/higress/sdk/service/kubernetes/crd/mcp/V1RegistryConfigMetadata.java

@@ -16,6 +16,9 @@
 
 import com.google.gson.annotations.SerializedName;
 
+import lombok.Data;
+
+@Data
 public class V1RegistryConfigMetadata {
 
     public static final String SERIALIZED_NAME_INNER_MAP_NAME = "innerMap";