Bug 32394: Restore long tasks queue

Bug 32394: Restore long tasks queue

We are sending "queue" as parameter, but "job_queue" is retrieved in
Koha::BackgroundJob->enqueue...

Test plan:
Read code and confirm the above.
More fun for test plan will be found on bug 32393

Signed-off-by: Tomas Cohen Arazi <tomascohen@theke.io>
Signed-off-by: Marcel de Rooy <m.de.rooy@rijksmuseum.nl>
Signed-off-by: Tomas Cohen Arazi <tomascohen@theke.io>
(cherry picked from commit 9810fc5e0e425b9947589630d2d598eec22262e9)
Signed-off-by: Martin Renvoize <martin.renvoize@ptfs-europe.com>