Update GitHub Actions workflow to exclude incompatible Python and Dja…

…ngo version combinations

.github/workflows/test.yml

@@ -20,6 +20,17 @@ jobs:
           "django>=5.1,<5.2",
         ]
 
+        # What Python version can I use with Django? https://docs.djangoproject.com/en/dev/faq/install/#what-python-version-can-i-use-with-django
+        exclude:
+          - python-version: "3.9"
+            django-version: "django>=5.0,<5.1"
+          - python-version: "3.9"
+            django-version: "django>=5.1,<5.2"
+          - python-version: "3.13"
+            django-version: "django>=4.2,<5.0"
+          - python-version: "3.13"
+            django-version: "django>=5.0,<5.1"
+
     steps:
     - uses: actions/checkout@v2
     - name: Set up Python ${{ matrix.python-version }}