2a4ce0b8fc
We have pin keyston to queens release which supports UUID token through https://review.openstack.org/546475, let us use UUID in queens and migrate to fernet in rocky cycle. This reverts commit df0bf1903febd124343ffb7fae398f44b9986422. Change-Id: Ifb0112315b5047461ce0bf02c754cc0beac52d9a