Add django to unit test build matrix

Author: rlskoeser

.github/workflows/unit_tests.yml

@@ -25,6 +25,9 @@ jobs:
     strategy:
       matrix:
         python: ["3.10", "3.11", "3.12", "3.13"]
+        django: [0, "5.2"]  # add more versions as we add support
+      # exclude incompatible python+django combinations if needed
+      # OR limit django+python to specific combinations to avoid too many builds
     defaults:
       run:
         working-directory: .
@@ -40,8 +43,11 @@ jobs:
           cache: 'pip'
           cache-dependency-path: '**/pyproject.toml'
 
-      - name: Install package with dependencies
-        run: pip install -e ".[test]"
+      # test with and without django based on build matrix
+      - name: Install package with dependencies (and optionally django)
+        run: |
+          if [ "${{ matrix.django }}" -gt "0"]; then pip install -q Django==${{ matrix.django }} pytest-django; fi
+          pip install -e '.[test]'
 
       # for all versions but the one we use for code coverage, run normally
       - name: Run unit tests without code coverage