Hopefully fix intermittent test error
Hopefully fix intermittent test error

Jenny's research in https://github.com/dimagi/commcare-hq/pull/30883
suggested that this was caused by using a domain name that was used in
another test and not cleaned up properly.  This is a very inelegant
workaround to that problem.

dimagi/commcare-hq,dimagi/commcare-hq,dimagi/commcare-hq,dimagi/commcare-hq,dimagi/commcare-hq