MLBEDSW-10509: Increase NumPy minimum version
Bumped minimum NumPy version to 1.23.0 and updated example for using a different NumPy version in BUILD.md
Change-Id: I31e5b0dad1237b09db4ad48802a4774aa2997b75 Signed-off-by: Max Bergfelt max.bergfelt@arm.com