seata have commit failed when commit request and rollback request run on the same time

- [ ] I have searched the [issues](https://github.com/seata/seata/issues) of this repository and believe that this is not a duplicate.

### Ⅰ. Issue Description

100 commit request and 100 rollback request at the same time ,
some commit request have failed

### Ⅱ. Describe what happened

If there is an exception, please attach the exception trace:

```
Just paste your stack trace here!
```

### Ⅲ. Describe what you expected to happen

### Ⅳ. How to reproduce it (as minimally and precisely as possible)

1. run seata-samples: springcloud-jpa-seata
100 commit request and 100 rollback request at the same time ,
some commit request have failed
2. registry.type = "file" or registry.type = "eureka"
3, store.mode = " db" lock. mode = "db"

### Ⅴ. Anything else we need to know?

### Ⅵ. Environment:

- JDK version :8
- OS :win10
- Others:seata0.6.1

Start with the seata-samples springcloud-jpa-seata sample and reproduce 100 concurrent commit and rollback requests using file or Eureka registry with DB store and lock modes. Investigate the reported commit failures on Seata 0.6.1; done means the concurrent requests complete without the described commit failures and the behavior is covered by a regression test.

Written by the indexing model from the issue text.