小程序端采用银行卡提现，提交后报：请求参数bankName类型错误。

原因：yudao-module-mall/yudao-module-trade-biz/src/main/java/cn/iocoder/yudao/module/trade/controller/app/brokerage/vo/withdraw/AppBrokerageWithdrawCreateReqVO.java中的字段：private Integer bankName实际应为String型，因为无论是用户手动输入银行名字，或是采用查询字典表类型"brokerage_bank_name"提交字典值"value"，都应该是String型。

经检查其相所有相关的DO，VO的属性bankName均为String，所以AppBrokerageWithdrawCreateReqVO的bankName改为String为宜。

Signed-off-by: heyho <heywsk@qq.com>

yudao-module-mall/yudao-module-trade-biz/src/main/java/cn/iocoder/yudao/module/trade/controller/app/brokerage/vo/withdraw/AppBrokerageWithdrawCreateReqVO.java

@@ -44,7 +44,7 @@ public class AppBrokerageWithdrawCreateReqVO {
     private String name;
     @Schema(description = "提现银行", example = "1")
     @NotNull(message = "提现银行不能为空", groups = {Bank.class})
-    private Integer bankName;
+    private String bankName;
     @Schema(description = "开户地址", example = "海淀支行")
     private String bankAddress;