fix/py3.12

[JarbasAl]

setuptools needs to be explicitly installed now, or OPM fails to scan plugins

    from ovos_plugin_manager.templates.solvers import QuestionSolver
  File "/home/miro/PycharmProjects/ovos-MoS/.venv/lib/python3.12/site-packages/ovos_plugin_manager/__init__.py", line 1, in <module>
    from ovos_plugin_manager.utils import PluginTypes
  File "/home/miro/PycharmProjects/ovos-MoS/.venv/lib/python3.12/site-packages/ovos_plugin_manager/utils/__init__.py", line 19, in <module>
    import pkg_resources
ModuleNotFoundError: No module named 'pkg_resources'

[mikejgray]

At some point worth seeing if there's a replacement in the standard library? Until then, a welcome fix!