pytest: requirements.txt: Resync with the rest of the project

In order to build the docker container, which contains a download cache
of python modules, we need to have our versions be in sync in each
requirements file. Update some of the cases where which are older than
the rest of the project.

Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Rini <trini@konsulko.com>