修复 banner 返回字段不对

yudao-module-mall/yudao-module-promotion-biz/src/main/java/cn/iocoder/yudao/module/promotion/controller/admin/banner/vo/BannerRespVO.java

@@ -4,6 +4,8 @@ import io.swagger.v3.oas.annotations.media.Schema;
 import lombok.Data;
 import lombok.ToString;
 
+import java.time.LocalDateTime;
+
 @Schema(description = "管理后台 - Banner Response VO")
 @Data
 @ToString(callSuper = true)
@@ -12,4 +14,7 @@ public class BannerRespVO  extends BannerBaseVO {
     @Schema(description = "编号", requiredMode = Schema.RequiredMode.REQUIRED)
     private Long id;
 
+    @Schema(description = "创建时间", requiredMode = Schema.RequiredMode.REQUIRED, example = "2022-07-01 23:59:59")
+    private LocalDateTime createTime;
+
 }