`uuid.py` checks platform for emscripten and wasi

[youknowone]

Bug report

uuid now always check platform except for win32 and darwin.
It can be also skipped for emscripten and wasi.

This is strictly not a bug. But it can skip useless checks.

Your environment

• CPython versions tested on:
• Operating system and architecture: WASI

Linked PRs

• gh-104396: uuid.py to skip platform check for emscripten and wasi #104397