[VL][1.2] Result of `cast(double as string)` is inconsistent with vanilla spark

### Backend

VL (Velox)

### Bug description

sql:
```
create table t1 as select cast(0.000642224797047674666 as double) as c1;
select cast(c1 as string) from t1;
```

vanilla spark result:
```
6.422247970476747E-4
```

gluten 1.2.0 with velox result:
```
6.4222479704767466E-4
```

### Spark version

Spark-3.5.x

### Spark configurations

_No response_

### System information

_No response_

### Relevant logs

_No response_