Bug 34932: Patron.t - Pass borrowernumber of manager to userenv

Bug 34932: Patron.t - Pass borrowernumber of manager to userenv

Test plan:
Make sure that you do not have borrowr 51.
Run t/db_dependent/Koha/Patron.t.

Signed-off-by: Marcel de Rooy <m.de.rooy@rijksmuseum.nl>
Signed-off-by: Jonathan Druart <jonathan.druart@bugs.koha-community.org>
Signed-off-by: Tomas Cohen Arazi <tomascohen@theke.io>
(cherry picked from commit ca4da5e17ea7a65a473778f590c2703e8eecf7ce)
Signed-off-by: Fridolin Somers <fridolin.somers@biblibre.com>
(cherry picked from commit f5f0bc40106a06dcfeff5b36eb6527cc9350ff81)
Signed-off-by: Matt Blenkinsop <matt.blenkinsop@ptfs-europe.com>