Update CategoryAttribute.java

Changed lombok annotation to rest of the project, sorry for that

Author: knottnhupfer

src/main/java/com/github/chen0040/magento/models/CategoryAttribute.java

@@ -2,7 +2,8 @@
 
 import lombok.Data;
 
-@Data
+@Setter
+@Getter
 public class CategoryAttribute {
 
   private String attribute_code;