convert osc-lib to use the new unified doc job
convert osc-lib to use the new unified doc job

Change-Id: I216d7d23f4c0ea70c6196c4123dfe44ab8925c0e
Depends-On: I91657e96ef29f8b36b2089a11c9c4966418cfcdb
Signed-off-by: Doug Hellmann <0798ebecfb7bc4dfb9d0445c2fa030eb64e1fa1c@doughellmann.com>

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