2.3.0 install uses cpu only

- [ ] I didn't find a similar issue already open.
- [ ] I read the documentation (README AND Wiki)
- [ ] I have installed FFMpeg
- [ ] My problem is related to Spleeter only, not a derivative product (such as Webapplication, or GUI provided by others)

## Description

## Step to reproduce

1. Installed using `...`
2. Run as `...`
3. Got `...` error

## Output

```bash
Share what your terminal says when you run the script (as well as what you would expect).
```

## Environment

| | |
| ----------------- | ------------------------------- |
| OS | Windows |
| Installation type | Conda / pip |
| Hardware spec | GPU / CPU / etc ... |

## Additional context

did not use gpu

https://oss.canxingtv.com/upload/res.singschool.com/637679332437315016-min.png