Fix an error for GitHub Actions

.github/workflows/pytest.yml

@@ -21,10 +21,7 @@ jobs:
           python-version: ${{ matrix.python-version }}
       - name: Install dependencies
         run: |
-          python -m pip install --upgrade pip setuptools
-          pip install pytest
-          pip install scipy
+          pip install .[dev]
       - name: Run pytest
         run: |
-          pip install .
           pytest