Bug 36787: staticfines.pl add use Koha::DateUtils::output_pref

Bug 36787: staticfines.pl add use Koha::DateUtils::output_pref

misc/cronjobs/staticfines.pl is calling output_pref() but it is missing from module import :
use Koha::DateUtils qw( dt_from_string );

Test but running staticfines.pl

Signed-off-by: Matt Blenkinsop <matt.blenkinsop@ptfs-europe.com>
Signed-off-by: Katrin Fischer <katrin.fischer@bsz-bw.de>
(cherry picked from commit 18ac387e6a706019bc5a6c9fadf266eb2b4bf05d)
Signed-off-by: Fridolin Somers <fridolin.somers@biblibre.com>
(cherry picked from commit 76d5c1373240764fc80777beb053465d9687cc04)
Signed-off-by: Lucas Gass <lucas@bywatersolutions.com>