Merge "Change python interpreter"

ansible/action_plugins/merge_configs.py

ansible/action_plugins/merge_yaml.py

ansible/library/bslurp.py

ansible/library/kolla_docker.py

ansible/library/kolla_toolbox.py

ansible/library/merge_configs.py

ansible/library/merge_yaml.py

ansible/roles/keystone/files/fernet_rotate_cron_generator.py

tests/test_kolla_docker.py

tests/test_merge_config.py

tools/validate-all-file.py

tools/validate-yaml.py