ci: remove Django 2.2 target (#75509)

tox.ini

@@ -6,15 +6,11 @@
 [tox]
 toxworkdir = {env:TMPDIR:/tmp}/tox-{env:USER}/authentic2-cut/{env:BRANCH_NAME:}
 envlist =
-  py3-dj22-drf39-djtables1211
-  py3-dj22-drf312-djtables211
-  py3-dj32-drf312-djtables241
+  py3-dj32
 
 [tox:jenkins]
 envlist =
-  py3-dj22-drf39-djtables1211
-  py3-dj22-drf312-djtables211
-  py3-dj32-drf312-djtables241
+  py3-dj32
   check-migrations
   code-style
   pylint
@@ -40,13 +36,9 @@ deps =
   local: ../authentic
   # dependency constraints for authentic
   py3: file-magic
-  dj22: django<2.3
   dj32: django>=3.2.12,<3.3
-  drf39: djangorestframework>=3.9.2,<3.10
-  drf312: djangorestframework>=3.12,<3.13
-  djtables1211: django-tables2==1.21.1
-  djtables211: django-tables2==2.1.1
-  djtables241: django-tables2==2.4.1
+  djangorestframework>=3.12,<3.13
+  django-tables2==2.4.1
   psycopg2-binary<2.9
   oldldap: python-ldap<3
   ldaptools
@@ -107,7 +99,7 @@ usedevelop = true
 basepython = python3
 deps =
     https://git.entrouvert.org/entrouvert/authentic/archive/main.tar.gz
-    Django<2.3
+    Django<3.3
     pylint<1.8
     pylint-django<0.8.1
 commands =