[py] fix sdist publish instructions

[jameshilliard]

It appears that only wheels are being published to pypi, this should fix the publishing procedure to include sdists.

Description

Update publish procedure to include sdists.

Motivation and Context

Sdists on pypi are missing as reported in #9917

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)

Checklist

• I have read the contributing document.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• [N/A] I have added tests to cover my changes.
• [N/A] All new and existing tests passed.

[CLAassistant]

All committers have signed the CLA.

[titusfortner]

As described in the issue you referenced, our issue is that Bazel is not properly creating the sdist in the first place. We can't publish what isn't getting built. We probably should pull the "publishing" instructions from the README entirely because that really isn't relevant to users.

[jameshilliard]

As described in the issue you referenced, our issue is that Bazel is not properly creating the sdist in the first place. We can't publish what isn't getting built.

I hit one bug which should be fixed by #647, is that the issue you are referring to?

[AutomatedTester]

The issue with publishing is that pypi is expecting a PKG_INFO which we're not generating. I haven't had time to do it but we could probably copy the implementation from py_wheel and create a new rule that maybe we can upstream to rules_python

[titusfortner]

@jameshilliard thanks for digging into this!

[jameshilliard]

The issue with publishing is that pypi is expecting a PKG_INFO which we're not generating.

Should be fixed in #11379.

[titusfortner]

I'll merge this now, thanks!

It's already in our releasing documents, which we manage here: https://github.com/SeleniumHQ/selenium/wiki/Releasing-Selenium