Update python-app.yml

See: #37

.github/workflows/python-app.yml

@@ -28,8 +28,7 @@ jobs:
 
     - name: Install dependencies (Linux and macOS)
       run: |
-        apt-get update && apt-get autoclean
-        apt-get install -y '^libxcb.*-dev' libx11-xcb-dev libglu1-mesa-dev libxrender-dev libxi-dev libxkbcommon-dev libxkbcommon-x11-dev
+        sudo apt-get update && apt-get install -y python3-opencv
         python3 -m pip install --upgrade pip
         pip install flake8 
         pip install -r requirements.txt