distutils is deprecated

[jackpot51]

Running python -Werror setup.py test on Python 3.10 or newer will generate this error:

DeprecationWarning: The distutils package is deprecated and slated for removal in Python 3.12. Use setuptools or check PEP 632 for potential alternatives

This was worked around temporarily in 4c42f32

[leorochael]

This issue seems to have been fixed permanently in f383caf.