Fix GitHub actions tox testing

Author: alxbridge

.github/workflows/test.yml

@@ -46,7 +46,7 @@ jobs:
         run: python -Im flit build --format wheel
 
       - name: 🧪 Run tox targets for Python ${{ matrix.python }}
-        run: tox  -q --installpkg ./dist/*.whl
+        run: tox -q --installpkg ./dist/*.whl
 
       - name: ⬆️ Upload coverage data
         uses: actions/upload-artifact@v4

tox.ini

@@ -41,7 +41,7 @@ deps =
 extras = testing
 install_command = python -Im pip install -U {opts} {packages}
 commands =
-    python -Im coverage run testmanage.py test --deprecation all {posargs: -v 2}
+    python -Im coverage run --source=wagtail_footnotes testmanage.py test --deprecation all {posargs: -v 2}
 
 
 [testenv:coverage-report]