`Platforms/Apple`: add `pythoninfo-build` command to display build info of the build Python

[vstinner]

I propose adding a pythoninfo-build command to Platforms/Apple to display build info of the build Python. I made a similar change to Platforms/emscripten and Platforms/WASI.

The idea is to collect information about the system such as the boot identifier, machine identifier, uptime, and detect if Python is running in a VM or container: system. keys of test.pythoninfo.

Linked PRs

• gh-152715: Add pythoninfo-build command to Platforms/Apple #152716
• [3.15] gh-152715: Add pythoninfo-build command to Platforms/Apple (GH-152716) #152723
• [3.14] gh-152715: Add pythoninfo-build command to Platforms/Apple (GH-152716) #152724