Bug 21122: Fix check-url-quick when utf8 characters in URL's

Bug 21122: Fix check-url-quick when utf8 characters in URL's

To test:

Make a record with a URL that has a UTF8 character, such as:
http://some.nonexistent.tld/MāoriWomenAotearoa.pdf
Run the check-url-quick.pl job, notice it dies at that URL
Apply this patch
Test again, it should work.

Signed-off-by: Owen Leonard <oleonard@myacpl.org>
Signed-off-by: Jonathan Druart <jonathan.druart@bugs.koha-community.org>
Signed-off-by: Tomas Cohen Arazi <tomascohen@theke.io>