Missing dependency for py3.12 (pkg_resources / setuptools)

[ewjoachim]

Hello,

Python3.12 does not include setuptools in default venvs anymore, if a package needs setuptools, it needs to explicitly import it.

This package uses pkg_resources which is distributed by setuptools. It should not use pkg_resources, because it's deprecated, but in the meantime, it should declare an explicit dependency to setuptools.