Python: Numpy 1.19.4 issue on Windows 2004

[ennerf]

Doing pip install hebi-py installs numpy 1.19.4, which fails as soon as a script does import hebi:

RuntimeError: The current Numpy installation ('E:\\toolchains\\.python\\venv\\lib\\site-packages\\numpy\\__init__.py') 
fails to pass a sanity check due to a bug in the windows runtime. See this issue for more information: 
https://tinyurl.com/y3dm3h86

On the link there is a comment by Kevin Sheppard on Nov 3rd:

If you have arrived in this thread from the link in the NumPy import error, it would be more helpful if:

* You upvote this issue to let the C runtime team know this is affecting you.

* Try and avoid making noisy posts that simply paste the traceback or other unhelpful material.


As a workaround, you temporarily pin to NumPy 1.19.3 (`pip install numpy==1.19.3`) which has a fixed version of 
OpenBLAS that works correctly in Windows 2004/20H2. This fix broken other things (Linux, Windows-on-docker) 
and so could not be retained in NumPy 1.19.4.

I confirmed that fixing numpy to 1.19.3 does make it work again on the latest update.