Enable tempest tests for hostname sanitization

Starting Wallaby release, nova sanitizes instance hostnames having
freeform characters with dashes. It should be tested in Devstack.

Depends-On: https://review.opendev.org/c/openstack/tempest/+/795699
Change-Id: I54794e58b67620c36e8f2966ec3b62dd24da745b
1 file changed