Currently the dump_devinfo fixture generation tests do not test
generation for hub and their children.
This PR enables tests for `smartcam` hubs and their child fixtures. It
does not enable support for `smart` hub fixtures as not all the fixtures
currently have the required info. This can be addressed in a subsequent
PR.
Python 3.11 ships with latest Debian Bookworm.
pypy is not that widely used with this library based on statistics. It could be added back when pypy supports python 3.11.