fix: remove things related to django 2.2 (#1414)

* fix: remove things related to django 2.2

* remove Django 2.2 classifier in setup.py
* remove tests for Django < 3.2

* fix: remove mentions of django 2.2 -> 3.2

* update CHANGELOG.rst
* remove Django 3.0 & 3.1 classifiers
* update tests/requirements/frontend.txt

Author: corentinbettiol

CHANGELOG.rst

@@ -2,6 +2,12 @@
 CHANGELOG
 =========
 
+unreleased
+==========
+
+* remove Django 2.2, 3.0, and 3.1 classifiers in setup.py
+* remove tests for Django < 3.2 since those versions are not supported anymore
+
 3.0.4 (2023-08-04)
 ==================
 
@@ -51,6 +57,7 @@ CHANGELOG
 * Remove unused css from delete confirmation view and move file view
 * Add Pillow 10 compatibility
 * Update translations (de/fr/nl)
+* Drop Django 2.2, 3.0, and 3.1 support
 
 2.2.5 (2023-06-11)
 ==================

setup.py

@@ -31,9 +31,6 @@
     'Programming Language :: Python :: 3.10',
     'Programming Language :: Python :: 3.11',
     'Framework :: Django',
-    'Framework :: Django :: 2.2',
-    'Framework :: Django :: 3.0',
-    'Framework :: Django :: 3.1',
     'Framework :: Django :: 3.2',
     'Framework :: Django :: 4.0',
     'Framework :: Django :: 4.1',

tests/requirements/django-2.2.txt

@@ -1,4 +1,4 @@
 -r base.txt
 
-django>=2.2,<3.0
-django_polymorphic>=2.0,<2.1
+django>=3.2,<5
+django_polymorphic>=3