Use the new PTI job instead of the obsolete one, this
now runs "tox -e docs".
Update docs environment to error on warnings as done before.
Change-Id: I2a6bb786d434e1ef3e7fc9a5c888db708e2a268b
This is a mechanically generated patch to complete step 1 of moving
the zuul job settings out of project-config and into each project
repository.
Because there will be a separate patch on each branch, the branch
specifiers for branch-specific jobs have been removed.
Because this patch is generated by a script, there may be some
cosmetic changes to the layout of the YAML file(s) as the contents are
normalized.
See the python3-first goal document for details:
https://governance.openstack.org/tc/goals/stein/python3-first.html
Change-Id: I226ad1fa1e7e5295dae121560403bee5e65d31c3
Story: #2002586
Task: #24293