I wonder if the 1.19.5 version of numpy is still installed on your system somewhere. You may want to run pip3 uninstall numpy && sudo pip3 uninstall numpy
first.
Or you can workaround the issue with 1.19.5 by running export OPENBLAS_CORETYPE=ARMV8
before you run python3:
$ export OPENBLAS_CORETYPE=ARMV8
$ python3
>>> import numpy
>>> import torch