Bug 34685: Make updatedatabase.pl propagate the error

Bug 34685: Make updatedatabase.pl propagate the error

updatedatabase.pl already return 0 even if an error occurred during the upgrade.

Test plan:
Adjust a db rev to make it fail and modify the value of the syspref 'version' in DB to
make the db rev run.

Run updatedabase.pl and `echo $?`

Signed-off-by: David Cook <dcook@prosentient.com.au>
Signed-off-by: Kyle M Hall <kyle@bywatersolutions.com>
Signed-off-by: Tomas Cohen Arazi <tomascohen@theke.io>
(cherry picked from commit 531fb2c9fd2e8b38ac1c6ef21be047bbb0358d7a)
Signed-off-by: Fridolin Somers <fridolin.somers@biblibre.com>