egg-sequelize事务锁死
## What happens?

在mssql上使用事务时，经常性死锁，直到请求超时。
```js
const result = await ctx.hrmodel.transaction(async (t)=>{
                for (let i=0;i<2;i++) {
                    const KqDjqq = await ctx.hrmodel.KqDjqq.create({
                        EmpID: '123456',
                        QqType: 'G_cc',
                        FDatetime0: '2022-08-08 08:00:00',
                        FDatetime1: '2022-08-08 09:00:00',
                    }, { transaction: t });

                    const chuChai = await ctx.hrmodel.KqDjqq.findOne({
                        attributes: ['EmpID'],
                        where: {EmpID: '123456'}
                    });
                }
            });
```

只要在create插入后进行findOne，一定会卡住直到请求超时，我不知道这个问题要如何处理

@dead-horse 
## Mini Showcase Repository(REQUIRED)
> Provide a mini GitHub repository which can reproduce the issue.
> Use `npm init egg --type=simple bug` then upload to your GitHub

<!-- https://github.com/YOUR_REPOSITORY_URL -->

## How To Reproduce

**Steps to reproduce the behavior:**
1.
2.

**Expected behavior**
1.
2.

## Context
- **Node Version**: 16.15.1
- **Egg Version**: 2.15.1
- **Plugin Name**: egg-sequelize
- **Plugin Version**: 6.0.0
- **Platform**: windows And Mac
- **sql version**: sql server 2008 R2
