修复ES nested类型无法自动创建问题

mall-search/src/main/java/com/macro/mall/search/domain/EsProduct.java

@@ -46,6 +46,6 @@ public class EsProduct implements Serializable {
     private Integer stock;
     private Integer promotionType;
     private Integer sort;
-    @Field(type =FieldType.Nested)
+    @Field(type = FieldType.Nested, fielddata = true)
     private List<EsProductAttributeValue> attrValueList;
 }