Bug 36331: (follow-up) Ignore non_priority holds when checking renewability

Bug 36331: (follow-up) Ignore non_priority holds when checking renewability

When changing the fetch of holds, the check for non-priority was lost - added a loop to pull those out
so the totals and checks are correct

Signed-off-by: Tomas Cohen Arazi <tomascohen@theke.io>
Tidied (tcohen)
Signed-off-by: Katrin Fischer <katrin.fischer@bsz-bw.de>
(cherry picked from commit b7ad3364cbf8778507f7d0dbd2a0199cbe7c0cdd)
Signed-off-by: Fridolin Somers <fridolin.somers@biblibre.com>
(cherry picked from commit 4f4add4c039f30a69bedb75088d9eb5081db29f2)
Signed-off-by: Lucas Gass <lucas@bywatersolutions.com>