enable django 3.2 testing in tox file (#68025)

setup.py

@@ -159,7 +159,7 @@ setup(
         'Programming Language :: Python :: 3',
     ],
     install_requires=[
-        'django>=2.2, <2.3',
+        'django>=2.2, <3.3',
         'gadjo',
         'djangorestframework>=3.4',
         'django-filter',

tox.ini

@@ -1,5 +1,8 @@
 [tox]
-envlist = py3-django22-codestyle-coverage, pylint
+envlist =
+  py3-django22-codestyle-coverage,
+  py3-django32,
+  pylint
 toxworkdir = {env:TMPDIR:/tmp}/tox-{env:USER}/chrono/{env:BRANCH_NAME:}
 
 [testenv]
@@ -26,10 +29,12 @@ deps =
   django-webtest
   pytz
   pyquery
-  django22: django-mellon>=1.6.1
+  django-mellon>=1.6.1
   pytest-freezegun
   django22: django>=2.2,<2.3
-  psycopg2-binary<2.9
+  django22: psycopg2-binary<2.9
+  django32: django>=3.2,<3.3
+  django32: psycopg2-binary>=2.9
   codestyle: pre-commit
   git+https://git.entrouvert.org/publik-django-templatetags.git
 commands =