Distutils deprecation warning

It's been a while since worker tests display the following warning

/home/yschneider/dev/workers/base-worker/.tox/arkindex_worker/lib/python3.8/site-packages/pytest_responses.py:9: DeprecationWarning: distutils Version classes are deprecated. Use packaging.version instead.
    if LooseVersion(pytest.__version__) >= LooseVersion('4.0.0'):

cf https://peps.python.org/pep-0632/