Tweaking workflow

.github/workflows/python-package.yml

@@ -27,8 +27,8 @@ jobs:
     - name: Install dependencies
       run: |
         python -m pip install --upgrade pip
-        python -m pip install flake8 pytest
-        pip install -e .
+        pip install .
+        pip install .[dev]
     - name: Lint with ruff
       run: |
         ruff check src