Bug 23091: Add tests for _RestoreOverdueForLostAndFound

Bug 23091: Add tests for _RestoreOverdueForLostAndFound

This patch adds unit tests for the newly introduced
_RestoreOverdueForLostAndFound method in C4::Circulation.

Test plan
1/ Read the new tests added to t/db_dependent/Circuation.t to ensure
they make sense
2/ Run the tests and verify they pass
3/ Signoff

Signed-off-by: Andrew Fuerste-Henry <andrew@bywatersolutions.com>
Signed-off-by: Tomas Cohen Arazi <tomascohen@theke.io>
Signed-off-by: Jonathan Druart <jonathan.druart@bugs.koha-community.org>