Bug 33843: Use filter_by_last_update in Koha::Notice::Util

Bug 33843: Use filter_by_last_update in Koha::Notice::Util

Resolve FIXME in sub _get_domain_count by using new logic
from bug 33837.

Test plan:
Run t/db_dependent/Koha/Notice_Util.t.
This triggers the _get_domain_count call using the filter.

Signed-off-by: Marcel de Rooy <m.de.rooy@rijksmuseum.nl>
Signed-off-by: David Nind <david@davidnind.com>
Signed-off-by: Jonathan Druart <jonathan.druart@bugs.koha-community.org>
Signed-off-by: Tomas Cohen Arazi <tomascohen@theke.io>