fix：【PAY 支付】PayDemoWithdrawServiceImpl 拼写错误

yudao-module-pay/yudao-module-pay-biz/src/main/java/cn/iocoder/yudao/module/pay/service/demo/PayDemoTransferServiceImpl.java → yudao-module-pay/yudao-module-pay-biz/src/main/java/cn/iocoder/yudao/module/pay/service/demo/PayDemoWithdrawServiceImpl.java

@@ -35,7 +35,7 @@ import static cn.iocoder.yudao.module.pay.enums.ErrorCodeConstants.*;
 @Service
 @Validated
 @Slf4j
-public class PayDemoTransferServiceImpl implements PayDemoWithdrawService {
+public class PayDemoWithdrawServiceImpl implements PayDemoWithdrawService {
 
     /**
      * 接入的支付应用标识