fix 用户列表查询问题

Src/Dlhis.Sys/Identity/Request/UserCreateRequest.cs

@@ -20,11 +20,11 @@ public class UserCreateRequest
     /// <summary>
     /// 厂区
     /// </summary>
-    [Required]
-    public string Tenant { get; set; }
+    [MinLength(1, ErrorMessage = "请明确厂区")]
+    public List<string> Tenants { get; set; }
 
     /// <summary>
     /// 名称
     /// </summary>
     public string Name { get; set; }
-}
+}