chore(#1): install req before

.github/workflows/py.yml

@@ -47,8 +47,8 @@ jobs:
       - name: Install dependencies
         run: |
           python -m pip install --upgrade pip
-          python -m pip install flake8 pytest
           pip install -r requirements.txt
+          python -m pip install flake8 pytest
       - name: Lint with flake8
         run: |
           flake8 . --count --select=E9,F63,F7,F82 --show-source --statistics