Comment 1 for bug 1900419

Reviewed: https://review.opendev.org/758553
Committed: https://git.openstack.org/cgit/openstack/kolla/commit/?id=b1709a87ed6bead417a3cd6848de068e06190370
Submitter: Zuul
Branch: master

commit b1709a87ed6bead417a3cd6848de068e06190370
Author: Michal Nasiadka <email address hidden>
Date: Fri Oct 16 13:10:03 2020 +0200

    Use upper constraints for virtualenv in openstack-base

    Since Rally has virtualenv in requirements, and is using contraints - it's
    trying to downgrade virtualenv from inside a virtualenv.
    Let's try to install proper version of packages in openstack-base.

    Closes-Bug: #1900419
    Change-Id: I2a1e2b6661fd4b62648756416e6147b604dda686