Upgrade to openstackci-dashboard 0.0.8.

Change-Id: I574bdbf3dddd5360368aa3d08ff6b25bc0beac1f
Reviewed-on: https://review.openstack.org/23463
Reviewed-by: Anita Kuno <akuno@lavabit.com>
Reviewed-by: Clark Boylan <clark.boylan@gmail.com>
Approved: Jeremy Stanley <fungi@yuggoth.org>
Reviewed-by: Jeremy Stanley <fungi@yuggoth.org>
Tested-by: Jenkins