nebula-python CI cache

[HarrisChu]

we use self-hosts runner and run CI in vesoft/nebula-dev containers.
by default, github runner would mount a temp folder for ${HOME}, i.e. /github/home

        "HostConfig": {
            "Binds": [
                "/home/vesoft/action-ruuner-harris/externals:/__e:ro",
                "/home/vesoft/action-ruuner-harris/_work/_temp/_github_home:/github/home",
                "/home/vesoft/action-ruuner-harris/_work/_tool:/__w/_tool",
                "/home/vesoft/action-ruuner-harris/_work/_temp/_github_workflow:/github/workflow",
                "/var/run/docker.sock:/var/run/docker.sock",
                "/tmp/ccache/nebula/centos7-gcc-9.2:/tmp/ccache/nebula/centos7-gcc-9.2",
                "/home/vesoft/action-ruuner-harris/_work:/__w",
                "/home/vesoft/action-ruuner-harris/_work/_temp:/__w/_temp",
                "/home/vesoft/action-ruuner-harris/_work/_actions:/__w/_actions"
            ],

we use pip3 install --user in ci, if the python package versions are in the same, it won't update packages.
so we should use pip3 install --user --upgrade.
simply repeat the issue:

mkdir test && cd test
docker run -it --rm -v $PWD:/root/ vesoft/nebula-dev:centos7 bash
pip3 install nebula2-python --user
exit
docker run -it --rm -v $PWD:/root/ vesoft/nebula-dev:centos7 bash
git clone --branch param-var https://github.com/czpmango/nebula-python
cd nebula-python
pip3 install --user . -i https://mirrors.aliyun.com/pypi/simple/
cd .. && rm -rf nebula-python

python3 -c 'from nebula2.gclient.net import Session;print(dir(Session))'

the package is not updated.

[HarrisChu]

CC @czpmango @yixinglu

[HarrisChu]

https://github.com/vesoft-inc/nebula/runs/4557014379?check_suite_focus=true