Describe the bug

Too restrictive support entry in python3 port (and other ports) prevents to build this package/s in ARM system (macOS M1, Linux ARM64).

The entry says:

"supports": "!(arm | uwp)",

But, if arm is removed, it compiles and works just fine.

This problem affects other packages too.

Maybe related: #21474

Environment

• OS: Ubuntu 20 ARM64 (Linux 5.4.0-90-generic # 101-Ubuntu SMP Fri Oct 15 20:02:26 UTC 2021 aarch64 aarch64 aarch64 GNU/Linux)
• Compiler: gcc (Ubuntu 9.3.0-17ubuntu1~20.04) 9.3.0

To Reproduce
Steps to reproduce the behavior:

1. ./vcpkg install python3
2. See error
   Error: python3[core] is only supported on '!(arm | uwp)'

Expected behavior

A compilation :)