dde9a79fe7
When using a 32-bit OS on 64-bit host, almost all Python std methods
will report a 64-bit aarch64, but we most not install 64-bit executables
since Python is actually 32-bit, identifiable through
`struct.calcsize("P") == 4`.
Porting
https://github.com/pypa/packaging/blob/4dc334c86d43f83371b194ca91618ed99e0e49ca/src/packaging/tags.py#L539-L543
to uv.
Tested on a raspberry pi 4 with a 64-bit host raspbian and `docker run
-it --rm -v arm32v7/ubuntu` as 32-bit "host".
Fixes #9842