Remove Django 2.2 from test matrix.

Author: adamghill

noxfile.py

@@ -4,7 +4,7 @@
 
 
 @nox.session()
-@nox.parametrize("django", ["2.2", "3.2", "4.0", "4.1"])
+@nox.parametrize("django", ["3.2", "4.1", "4.2"])
 def tests(session, django):
     # Skip testing Django 4.0 with Python 3.7 because it is unsupported
     if (