mark py tests as non-voting
mark py tests as non-voting

Change-Id: I1403bbc1329d87b896ffc45e86432f6454160611

redhat-openstack/rdo-infra,rdo-infra/ci-config,redhat-openstack/rdo-infra,rdo-infra/ci-config,rdo-infra/ci-config,redhat-openstack/rdo-infra,rdo-infra/ci-config,redhat-openstack/rdo-infra