Tweak release_identification for awkward IoT 33 branch
    
    IoT created a branch that's basically Rawhide but is versioned
    33. This causes the release_identification tests to fail. I don't
    think they'll change this on their end, so let's just have the
    test cope with it and expect branches versioned as the Rawhide
    release number to behave as Rawhide does here.
    
    Signed-off-by: Adam Williamson <awilliam@redhat.com>