Update Django testing versions (#206)

Author: AlanCoding

.github/workflows/test.yml

@@ -10,7 +10,7 @@ jobs:
       fail-fast: false
       matrix:
         python-version: ['3.8', '3.9', '3.10']
-        django-version: ['3.2', '4.0', 'main']
+        django-version: ['3.2', '4.2', 'main']
         include:
           - python-version: '3.7'
             django-version: '3.2'

README.rst

@@ -41,7 +41,8 @@ provided by this package as drop in replacement for django's
 Requirements
 ============
 
-**django-sortedm2m** runs on Python 3.6+ and Django from 2.1 to 3.0.
+**django-sortedm2m** runs on Python 3.6+ and multiple Django versions.
+See the ``.github/workflows/test.yml`` configuration for the tested Django versions.
 
 Usage
 =====

tox.ini

@@ -1,7 +1,7 @@
 [tox]
 envlist =
     {py37,py38,py39,py310}-django32-{sqlite3,mysql,postgresql}
-    {py38,py39,py310}-django{40,main}-{sqlite3,mysql,postgresql}
+    {py38,py39,py310}-django{42,main}-{sqlite3,mysql,postgresql}
     quality
     dist-validation
     qunit
@@ -16,7 +16,7 @@ python =
 [gh-actions:env]
 DJANGO =
     3.2: django32
-    4.0: django40
+    4.2: django42
     main: djangomain
 
 [testenv]
@@ -25,7 +25,7 @@ deps =
     mysql: mysqlclient
     postgresql: psycopg2-binary
     django32: Django>=3.2,<3.3
-    django40: Django>=4.0,<4.1
+    django42: Django>=4.2,<4.3
     djangomain: https://github.com/django/django/archive/main.tar.gz
 ignore_outcome =
     main: True
@@ -49,7 +49,7 @@ commands =
 
 [testenv:quality]
 deps =
-    Django>=2.2,<3.0
+    Django>=3.2,<4.0
     selenium<4.0
     psycopg2-binary
     -rrequirements.txt