Add is_cli param to pydoc.pyi

[Eclips4]

As introduced in this PR, pydoc.doc and Helper.help now has an is_cli keyword parameter, which defaults to False.
It's has been backported to 3.11 branch, so I added a check for the version.

[hauntsaninja]

Thanks! We'll merge once new versions have been released and Github Actions picks them up

[AlexWaygood]

Now that Python 3.12b3 has made its way to GitHub Actions, the lack of this parameter is causing our CI to fail on main (e.g. https://github.com/python/typeshed/actions/runs/5334685391/jobs/9666793887?pr=10277). But it'll still be a while until we get a 3.11 patch release that includes this parameter.

For now, I'm going to edit this PR so that it just includes the parameter on py312+. We can change the stub so that the parameter is also included on py311 when we get a py311 release that includes the parameter :)

[github-actions]

According to mypy_primer, this change has no effect on the checked open source code. 🤖🎉