Use kolla-ansible from git instead of pip

kolla-ansible from pip installs 7.1.1 which is not
the latest on the stable/rocky branch. Hence using
the source from git instead of pip.

installer-type: kolla
deploy-scenario: os-nosdn-nofeature

Change-Id: Ib35820ece5cdf5fe15d6b3ecf2d87c7a132de955
1 file changed