Upgrade GitHub Actions

https://github.com/actions/checkout/releases
https://github.com/actions/setup-python/releases

.github/workflows/test.yml

@@ -11,18 +11,26 @@ jobs:
     name: Python ${{ matrix.python-version }}, django ${{ matrix.django-version }}
     runs-on: ubuntu-latest
     strategy:
-      matrix:
-        python-version: [3.8, 3.9, "3.10", "3.11"]
-        django-version: [32, 41, 42]
+      matrix:  # https://docs.djangoproject.com/en/5.0/faq/install/#faq-python-version-support
+        django-version: [32, 41, 42, 50]
+        python-version: [3.8, 3.9, "3.10", 3.11, 3.12]
 
         exclude:
-          - python-version: 3.11
-            django-version: 32
+          - django-version: 32
+            python-version: 3.11
+          - django-version: 32
+            python-version: 3.12
+          - django-version: 41
+            python-version: 3.12
+          - django-version: 50
+            python-version: 3.8
+          - django-version: 50
+            python-version: 3.9
 
     steps:
       - uses: actions/checkout@v4
       - name: setup python
-        uses: actions/setup-python@v4
+        uses: actions/setup-python@v5
         with:
           python-version: ${{ matrix.python-version }}
       - name: Install tox

tox.ini

@@ -1,5 +1,5 @@
 [tox]
-envlist = django{32,41,42}
+envlist = django{32,41,42,50}
 
 [testenv]
 commands =
@@ -8,3 +8,4 @@ deps =
     django32: Django>=3.2,<3.3
     django41: Django>=4.1,<4.2
     django42: Django>=4.2,<5.0
+    django50: Django>=5.0,<5.1