erbb setup doesn't work with Python ARM 64 on Windows

[ohmtech-rdi]

erbb setup doesn't work with Python ARM 64 on Windows.

Collected from build-system/toolchain/pip-install-reqs.log.txt

2023-06-16T15:01:09,131   Collecting cffi>=1.1.0
2023-06-16T15:01:09,147     Using cached cffi-1.15.1.tar.gz (508 kB)
2023-06-16T15:01:09,240     Installing build dependencies: started
2023-06-16T15:01:09,240     Running command pip subprocess to install build dependencies
2023-06-16T15:01:09,756     Collecting setuptools>=40.8.0
2023-06-16T15:01:09,756       Using cached setuptools-67.8.0-py3-none-any.whl (1.1 MB)
2023-06-16T15:01:09,803     Collecting wheel
2023-06-16T15:01:09,803       Using cached wheel-0.40.0-py3-none-any.whl (64 kB)
2023-06-16T15:01:09,865     Installing collected packages: wheel, setuptools
2023-06-16T15:01:10,522     Successfully installed setuptools-67.8.0 wheel-0.40.0
2023-06-16T15:01:10,600     Installing build dependencies: finished with status 'done'
2023-06-16T15:01:10,600     Getting requirements to build wheel: started
2023-06-16T15:01:10,600     Running command Getting requirements to build wheel
2023-06-16T15:01:10,772     Traceback (most recent call last):
...
2023-06-16T15:01:10,772       File "C:\Users\epa\AppData\Local\Temp\pip-build-env-qlb5zu5_\overlay\Lib\site-packages\setuptools\msvc.py", line 210, in msvc14_get_vc_env
2023-06-16T15:01:10,772         return _msvc14_get_vc_env(plat_spec)
2023-06-16T15:01:10,772                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2023-06-16T15:01:10,772       File "C:\Users\epa\AppData\Local\Temp\pip-build-env-qlb5zu5_\overlay\Lib\site-packages\setuptools\msvc.py", line 164, in _msvc14_get_vc_env
2023-06-16T15:01:10,772         raise distutils.errors.DistutilsPlatformError(
2023-06-16T15:01:10,772     distutils.errors.DistutilsPlatformError: Microsoft Visual C++ 14.0 or greater is required. Get it with "Microsoft C++ Build Tools": https://visualstudio.microsoft.com/visual-cpp-build-tools/
2023-06-16T15:01:10,788     error: subprocess-exited-with-error

This because a binary distribution of cffi is not available for Windows ARM, only AMD64.

Workaround: do not use Python ARM64, which is anyway still marked as experimental, use the AMD64 one, and let Windows do the emulation.

This needs to be captured in the documentation.