process-stackviz role currently defined in Tempest repo[1] and used
in tempest jobs. Issue with having it in branchless Tempest is that any
fix in that role cannot be backported to older Tempest. Also stackviz is
not Tempest things it is only used by Tempest jobs.
Stackviz can be considered as a service similar to Tempest so inatlling it in
Devstack side make sense. Also that will give us advantage to handle the
branch specific fixes or backpoting the fixes.
This can solve the current issues we are facing on rocky branch
- https://zuul.opendev.org/t/openstack/build/c1e2da80537448bfb24331fb4198a931/console#4/0/29/controller
[1] https://opendev.org/openstack/tempest/src/branch/master/roles/process-stackviz
Change-Id: I0ba1fd05c6391cd8bb978119ecfbb891def2d497
264d2a2e5f