feat: 添加用户cityName非空校验

src/main/java/com/nokia/vo/AddUserDto.java

@@ -38,6 +38,7 @@ public class AddUserDto {
     @NotBlank(message = "provinceName不能为空")
     private String provinceName;
     @Schema(description = "地市名称", required = true, example = "石家庄市")
+    @NotBlank(message = "cityName不能为空")
     private String cityName;
     @Schema(description = "区县名称", example = "长安区")
     private String areaName;