Bug 7333 - modifying Members.t to use a branchcode that exists in the sample data

Bug 7333 - modifying Members.t to use a branchcode that exists in the sample data

To test:
Create a fresh koha db with all of the sample data (if you have one that has the sample branches in it, that will work too)
run the test: prove t/db_dependent/Members.t

All subtests should complete.

Signed-off-by: Katrin Fischer <Katrin.Fischer.83@web.de>
All tests complete successfully with my database created from
sample data and with the database provided on the bug.

Signed-off-by: Paul Poulain <paul.poulain@biblibre.com>