The build is currently broken on master and 20.03. This upgrades to the latest
version and also disables the bad py2 test. I spent a long time trying to figure
out what the issue is, but since it's disabled upstream on python3 anyways let's
just skip it on python2 as well.
ZHF: #80379
(cherry picked from commit e9979380cf325912ccbd2c945a7963d667f1b76d)