更改用户接口

tuon-core/src/main/java/cn/tonyandmoney/tuon/core/user/IUser.java

@@ -75,8 +75,8 @@ public interface IUser {
         return Collections.emptyList();
     }
 
-    default List<String> getTagList() {
-        return Collections.emptyList();
+    default Set<String> getTagList() {
+        return Collections.emptySet();
     }
 
     default List<IUserGroup> getUserGroup() {