DeprecationWarning from pkg_resources on Python 3.10+

[craigds]

I have

• Tested with the latest release
• Tested with the current master branch
• Searched for similar existing issues

Expected behaviour

pysolr can be imported without warnings

Actual behaviour

pysolr causes a deprecation warning from importing pkg_resources on Python 3.10+

Steps to reproduce the behaviour

$ python -W ::DeprecationWarning -c 'import pysolr'

/venv/lib/python3.10/site-packages/pysolr.py:14: DeprecationWarning: pkg_resources is deprecated as an API. See https://setuptools.pypa.io/en/latest/pkg_resources.html
  from pkg_resources import DistributionNotFound, get_distribution, parse_version

Configuration

• Operating system version: Ubuntu 22.04 LTS
• Search engine version:
• Python version: Python 3.10.12
• pysolr version: 3.10.0b2

[cclauss]

This is a warning, not an error. This software does not have a problem functioning on Python 3.12.

[craigds]

correct. (still needs to be fixed, so i've submitted a PR^)