fix: 修复跟进纪录编号生成bug

yudao-module-customer/yudao-module-customer-core/src/main/java/cn/iocoder/yudao/module/customer/service/customerFollowup/CustomerFollowupServiceImpl.java

@@ -54,7 +54,7 @@ public class CustomerFollowupServiceImpl extends AbstractService<CustomerFollowu
         Long count = followupMapper.selectCount(new LambdaQueryWrapperX<CustomerFollowupDO>()
                 .ge(CustomerFollowupDO::getCreateTime, from));
 
-        return  String.format("GJ%d%06d", year, count);
+        return  String.format("GJ%d%06d", year, count + 1);
     }
 
     @Override