Bug 14362: PEGI15 Circulation/AgeRestrictionMarkers test fails

Bug 14362: PEGI15 Circulation/AgeRestrictionMarkers test fails

It is best to test when UTC date is a date in the future compared
to your timezone. I'm in Eastern, so right now, I expect this
test to fail for another 2.5 hours.

TEST PLAN
---------
1) prove t/Circulation/AgeRestrictionMarkers.t
   -- fails for PEGI 15 after 9pm.
2) Apply patch
3) prove t/Circulation/AgeRestrictionMarkers.t
   -- works.
4) koha qa test tools

Signed-off-by: Nick Clemens <nick@bywatersolutions.com>
Signed-off-by: Jonathan Druart <jonathan.druart@bugs.koha-community.org>
Signed-off-by: Kyle M Hall <kyle@bywatersolutions.com>
(cherry picked from commit 73f55165bef229668a135bee7e8c90a2c9c3f0a7)
Signed-off-by: Julian Maurice <julian.maurice@biblibre.com>