pkg_resources is not supported by Python 3.12

[tysmith]

Traceback (most recent call last):
  File "<frozen runpy>", line 189, in _run_module_as_main
  File "<frozen runpy>", line 148, in _get_module_details
  File "<frozen runpy>", line 112, in _get_module_details
  File "/home/user/workspace/venvs/dev/lib/python3.12/site-packages/lithium/__init__.py", line 6, in <module>
    from .reducer import Lithium
  File "/home/user/workspace/venvs/dev/lib/python3.12/site-packages/lithium/reducer.py", line 14, in <module>
    import pkg_resources
ModuleNotFoundError: No module named 'pkg_resources'