Problem with large codebase

### Description

Scancode gives `Timeout Error` when I launched an info scans on a large codebase which consist of more than 1m files.

The last line's error message:
```
multiprocessing.TimeoutError
```

It seems to be scancode doesn't work very well in a huge codebase.

### How To Reproduce

This is the command that I used
```
scancode -n2 -i --json --csv
```