Environment colision between regular and free-threaded builds when using the Windows installer

Environment colision between regular and free-threaded builds when using the Windows installer

Bug report

Bug description:

From pypa/distutils#310

When free threaded CPython is installed from the official Windows installer it doesn't have the macro Py_GIL_DISABLED properly set becuase its pyconfig.h file is shared across the co-installed default build.

CPython versions tested on:

CPython main branch

Operating systems tested on:

No response