Update adSkuCode field type to String

recommend-feature-client/src/main/java/com/tzld/piaoquan/recommend/feature/domain/ad/base/AdRankItem.java

@@ -61,7 +61,7 @@ public class AdRankItem implements Comparable<AdRankItem> {
     private Long skuId;
 
     private Long adSkuId;
-    private Long adSkuCode;
+    private String adSkuCode;
     private String adSkuName;
 
     //客户id