Bug 15081: (followup) Make test files using TestBuilder handle their transactions

Bug 15081: (followup) Make test files using TestBuilder handle their transactions

This trivial patch introduces the code needed on the test files so they handle
the DB transaction instead of relying on the (removed) transaction started/rolled back
by TestBuilder.

Tested all of the files before and after applying the patch, resultes are the same.
(Pass exept of t/db_dependent/Barcodes_ValueBuilder.t, this has the same error).
Signed-off-by: Marc Véron <veron@veron.ch>
Signed-off-by: Kyle M Hall <kyle@bywatersolutions.com>
Signed-off-by: Tomas Cohen Arazi <tomascohen@theke.io>