This redirect is part of the openstack.cloud collection (version 1.2.1).
This redirect has been deprecated. Please update your tasks to use the new name
openstack.cloud.authinstead. It will be removed in a major release after 2021-12-12 of openstack.cloud.
This is a redirect to the openstack.cloud.auth module.
This redirect also works with Ansible 2.9.
The collection contains the following information on this deprecation: os_ prefixed module names are deprecated, use openstack.cloud.auth