fix(docker): fix env path in dockerfile

[hanxiao]

What type of PR is this?

/kind bug

What does this PR do / why do we need it:

In the 1.0.0 Docker image, pip is configured in a way that all command line entrypoints are installed into /root/.local/bin. However, /root/.local/bin is not in the PATH env variables. This causes the problem that all Python packages that have CLI interfaces will throw "Command not found" error.

For example,

FROM mindspore/mindspore-cpu:1.0.0

RUN pip install --user pytest && pytest 

In this particular case, one workaround is to use python -m pytest. However, not all CLI-enabled packages implement this usage.

Which issue(s) this PR fixes:

This PR adds /root/.local/bin to env PATH inside Mindspore Dockerfile, so that all images built on top of mindspore will not suffer from this usability issue.

Special notes for your reviewers:

Please note that this should be applied to all Dockerfiles. Right now I'm just fixing one to showcase the problem and confirm with your dev team to see if this is the way to go.

[CLAassistant]

All committers have signed the CLA.

[mindspore-bot]

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[mindspore-bot]

Hi @hanxiao. Thanks for your PR.

I'm waiting for a mindspore-ai member to verify that this patch is reasonable to test. If it is, they should reply with /ok-to-test on its own line. Until that is done, I will not automatically test new commits in this PR, but the usual testing commands by org members will still work. Regular contributors should join the org to skip this step.

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[leonwanghui]

Hi @hanxiao , sorry for the late replies. We want to let you know that this PR has been transferred into MindSpore Gitee repo: https://gitee.com/mindspore/mindspore/pulls/8549, and we will keep u noticed with the latest PR update : )

[leonwanghui]

Hi @hanxiao, please notice that the cloned Gitee PR (https://gitee.com/mindspore/mindspore/pulls/8549) has been approved and merged into the codebase, so this PR would be closed. Thanks for your contribution!