Mark "neutron-tempest-plugin-designate-scenari" as non voting

This is related to the recent upgrade in the "setuptools" version to
80.0. This version no longer calls "easy_install" and doesn't  create
the WSGI script files. This issue is being addressed in [1]

[1]https://review.opendev.org/c/openstack/designate/+/902846

Related-Bug: #2109577
Change-Id: Ic3681b325f4aa708a67d3fd8258bcf812fc99139
1 file changed