Update pytest entrypoint

"pytest" was added in 3.0.0 as the recommended entry point https://docs.pytest.org/en/stable/changelog.html#release-3-0-0

Author: ulgens

tox.ini

@@ -17,7 +17,7 @@ deps =
     -rrequirements-test.txt
     dj42: django>=4.2,<4.3
     dj50: django>=5.0,<5.1
-commands = py.test -rxs --cov-report= --cov-append --cov djclick {posargs:djclick}
+commands = pytest -rxs --cov-report= --cov-append --cov djclick {posargs:djclick}
 
 
 [testenv:flake8]