fix: update test.yml

.github/workflows/test.yml

@@ -49,7 +49,7 @@ jobs:
     - name: Install dependencies
       run: |
         python setup.py install
-        pip install -r tests/requirements/dj{{matrix.django}}_cms{{matrix.cms}}.txt
+        pip install -r tests/requirements/dj${{matrix.django}}_cms${{matrix.cms}}.txt
         sudo apt-get install gettext
         python -m pip install --upgrade pip setuptools tox>4
     - name: Test with tox