Create TLD for DNSIntegrationTests

This is required to make sure concurrent tests that adds tlds
will not conflict.

Related-Prod: PRODX-29414
Change-Id: I3208363bb6997db28f31325634c5414c6a9bcd5e
(cherry picked from commit b24337af2bd3e891b8cdb94e7f9885c346636d7b)
1 file changed