This is a mechanically generated patch to switch the documentation
jobs to use the new PTI versions of the jobs as part of the
python3-first goal.
See the python3-first goal document for details:
https://governance.openstack.org/tc/goals/stein/python3-first.html
Change-Id: I338fc71919a41ec890bcb5edd0552ec7eb680eb5
Story: #2002586
Task: #24327