Fix the usage of tempest.client.Manager class

This should fix our gate. We should continue the work to remove
the dependencies from any module that isn't at tempest.lib.

Change-Id: I2158d1971a4187171a89169c3f324453f0ec13be
2 files changed
tree: 5a11d7f7f9e8371491e6e969ba4ca7319a3334f9
  1. keystone_tempest_plugin/