Temporary make rally job non voting
Temporary make rally job non voting

Actual fix is already proposed in rally[1], but
rally CI is red for other issues, so to unblock
neutron gate let's temporary make this job
non-voting.

ovn rally job is already non-voting.

[1] https://review.opendev.org/c/openstack/rally-openstack/+/847879

Related-Bug: #1980055
Change-Id: I39c9db9f3a1eea3cea4f1f4979e0abdce6946bea

mahak/neutron,openstack/neutron,openstack/neutron,mahak/neutron,openstack/neutron,mahak/neutron