gh-134632: Add iOS/Android test skip for C API check for headers.

[freakboy3742]

iOS and Android tests run in an environment where the build headers aren't visible, so testing for their existence won't work.

• Issue: PEP 739 / build-details.json: c_api.headers does not include the pythonX.Y directory #134632

[freakboy3742]

!buildbot iOS|android

[bedevere-bot]

🤖 New build scheduled with the buildbot fleet by @freakboy3742 for commit 1998591 🤖

Results will be shown at:

https://buildbot.python.org/all/#/grid?branch=refs%2Fpull%2F135656%2Fmerge

The command will test the builders whose names match following regular expression: iOS|android

The builders matched are:

• aarch64 Android PR
• AMD64 Android PR
• iOS ARM64 Simulator PR

[mgorny]

Thanks. Long term, we probably need to think if we don't need to support environments without development files (including without build-details.json) in general, but testing buildbots first is important.

[freakboy3742]

Agreed there's some discussion needed about how iOS/Android should be treated in this case.

The contents of build-details.json file could be useful - especially if it's referencing relative file paths - because for cross-builds, we do have headers, and we need to know how to find them. There will be a big difference between the runtime paths and the cross-build build-time paths - but there's no real meaning for headers etc at runtime, so... maybe there isn't a conflict, and build-details.json just needs to reflect the environment where they've being used in a cross-build.

[miss-islington-app]

Thanks @freakboy3742 for the PR 🌮🎉.. I'm working now to backport this PR to: 3.14.
🐍🍒⛏🤖

[bedevere-app]

GH-135657 is a backport of this pull request to the 3.14 branch.