Set GLOBAL_VENV=false to fix broken gate jobs

Set GLOBAL_VENV=false in neutron-tempest-plugin-base
job definition to fix gate jobs broken by devstack
change [0].

Had to make the neutron-tempest-plugin-dynamic-routing-*
jobs non-voting as they are failing on the master branch
check queue. Work is still ongoing on a fix.

[0] https://review.opendev.org/c/openstack/devstack/+/558930

Closes-bug: #2031415
Related-bug: #2031526
Change-Id: I2cab7e9169ca6ddaea8b580dbb995e0886bd93c1
2 files changed