Fix coverage again again again again again

.github/workflows/python-app.yml

@@ -32,7 +32,8 @@ jobs:
     - name: Install dependencies
       run: |
         python -m pip install --upgrade pip
-        pip install flake8 pytest pytest-cov .
+        pip install flake8 pytest pytest-cov
+        pip install -e .
         if [ -f requirements.txt ]; then pip install -r requirements.txt; fi
     - name: Lint with flake8
       run: |