Poor Scan results quality on Python wheel (.whl) distributions

### Description

While the quality on the source distribution is great, we could do better on the wheel distributions:

- Scanning the source distribution [license-expression-30.0.0.tar.gz](https://files.pythonhosted.org/packages/80/ad/9b3614c4630f3a1c0d5d7e5f6cfa8e90850186864e1181e86a65150d983f/license-expression-30.0.0.tar.gz)

```
Declared license: apache-2.0
Declared holder: nexB Inc. and others
License clarity score: 90
Key files: 7
Detected packages: 3
```

- Scanning the wheel [license_expression-30.0.0-py3-none-any.whl](https://files.pythonhosted.org/packages/12/36/d973dc41ce58eb3e6c8833e75d9e50f8c8f6c9bc9ac7e4f5430294e88708/license_expression-30.0.0-py3-none-any.whl)

```
Declared license: None
Declared holder: None
License clarity score: 0
Key files: 0
Detected packages: 0
```