[Mod] update github action workflow file

.github/workflows/pythonapp.yml

@@ -18,6 +18,7 @@ jobs:
         python -m pip install --upgrade pip
         pip install https://pip.vnpy.com/colletion/TA_Lib-0.4.17-cp37-cp37m-win_amd64.whl
         pip install https://pip.vnpy.com/colletion/quickfix-1.15.1-cp37-cp37m-win_amd64.whl
+        pip install https://pip.vnpy.com/colletion/ibapi-9.76.1.tar.gz
         pip install -r requirements.txt
     - name: Lint with flake8
       run: |