--upgrade与--force-reinstall一起使用时是否需要pip install标志？
从文档中不清楚：
https://pip.pypa.io/en/stable/reference/pip_install/
https://pip.pypa.io/en/stable/reference/pip_install/#cmdoption-u
https://pip.pypa.io/en/stable/reference/pip_install/#cmdoption-force-reinstall