Consider removing dev-python/pyyaml

Hello,

dev-python/pyyaml-6.0.2 is now in portage, so version 6.0.1 this repository offers is now I guess of little value?

Also it triggers warnings with every portage run for this:
```
 * ERROR: dev-python/pyyaml-6.0.1-r1::HomeAssistantRepository failed (depend phase):
 *   distutils_enable_tests: unsupported argument: setup.py
```

so removing it entirely will also solve this. Thanks!