Installer format deprecated.

[RokeJulianLockhart]

DEPRECATION: pylint-celery is being installed using the legacy 'setup.py install' method, because it does not have a 'pyproject.toml' and the 'wheel' package is not installed. pip 23.1 will enforce this behaviour change. A possible replacement is to enable the '--use-pep517' option. Discussion can be found at pypa/pip#8559

The log is available at jschaf/pylint-flask#20 (comment).
gladykov/rebooter#2 (comment)