This change upgrades py-pycryptodome from 3.16 to 3.17 and
py-pycryptodome-test-vectors from 1.0.10 to 1.0.12.
Minor adjustments were made to py-pycryptodome-test-vectors to
accomodate the fact that the upstream author no longer distributes .zip
files for the package.
PR: 270161
Signed-off-by: Enji Cooper <ngie@FreeBSD.org>