Update and fix tox-docs jobs
Update and fix tox-docs jobs

Fix the infra tox-docs job, it did not publish the content - create
a new common base template and use it for the tox-docs publish jobs.

Change-Id: Ie95311bcd6079001bccf90f1e4608927a6fd0623

openstack-infra/project-config,openstack-infra/project-config