Ignore flake8/black warnings with pytest 7.0.1 (jaraco/skeleton#58)

Author: abravalheri

pytest.ini

@@ -9,7 +9,9 @@ filterwarnings=
 	# shopkeep/pytest-black#55
 	ignore:<class 'pytest_black.BlackItem'> is not using a cooperative constructor:pytest.PytestDeprecationWarning
 	ignore:The \(fspath. py.path.local\) argument to BlackItem is deprecated.:pytest.PytestDeprecationWarning
+	ignore:BlackItem is an Item subclass and should not be a collector:pytest.PytestWarning
 
 	# tholo/pytest-flake8#83
 	ignore:<class 'pytest_flake8.Flake8Item'> is not using a cooperative constructor:pytest.PytestDeprecationWarning
 	ignore:The \(fspath. py.path.local\) argument to Flake8Item is deprecated.:pytest.PytestDeprecationWarning
+	ignore:Flake8Item is an Item subclass and should not be a collector:pytest.PytestWarning