Fix requirements

.github/workflows/tests.yml

@@ -23,7 +23,7 @@ jobs:
         run: |
           python -m pip install --upgrade pip
           pip install pytest
-          pip install -r requirements-dev.txt
+          pip install -r requirements-test.txt
       #- name: Lint with flake8
       #  run: |
       #    # stop the build if there are Python syntax errors or undefined names