* Install older version of pip<21.0 for ubuntu_xenial images
* Install setuptools via pip for ubuntu_xenial images
* Pin typing-extensions to 3.7.2 and apache-airflow to 1.10.5
* Move promenade Dependencies under UCP components in requirements.txt
* With apache-airflow=1.10.5, strip ANSI escape sequences
in test_deployment_group_manager.py
* Update tox.ini to support apache-airflow=1.10.5
* airskiff gate fixes
- Pin treasuremap to v1.9 branch
- Pin openstack-helm-infra to master
- Remove openstack client setup as it's not used
Change-Id: Iee4ce59fdceacb165120a69d11c44e6e47feaea8