fixup! test: upgrade to Python 3.11 and Django 4.2

tox.ini

@@ -1,5 +1,5 @@
 [tox]
-envlist = py38-django32,quality,docs
+envlist = py{311,312}-django{42},quality,docs
 
 [doc8]
 ignore = D001
@@ -24,7 +24,7 @@ norecursedirs = .* docs requirements
 
 [testenv]
 deps =
-    django32: Django>=3.2,<3.3
+    django42: Django>=4.2,<5.0
     -r{toxinidir}/requirements/test.txt
 commands =
     pytest --nomigrations {posargs}
@@ -35,7 +35,6 @@ passenv =
     EDXAGG_MYSQL_PASSWORD
 
 [testenv:docs]
-basepython = python3.8
 setenv =
     DJANGO_SETTINGS_MODULE = test_settings
     PYTHONPATH = {toxinidir}
@@ -53,7 +52,6 @@ commands =
     python setup.py check --restructuredtext --strict
 
 [testenv:quality]
-basepython = python3.8
 whitelist_externals =
     make
 deps =