Ian Wienand 42755b69c8 Add bionic-plain non-voting testing
This is a temporary node type that does not install
"pip-and-virtualenv" so does not have pip or virtualenv pre-installed.
Add this for non-voting testing as we migrate to this node type.

Change-Id: Ia9006873470d76d29cc9229f11650981662b2de9
Story: #2007386
Task: #39306
2020-04-07 10:51:49 +10:00
..