Update pickup lib from holds shelf status test repair

Update pickup lib from holds shelf status test repair

When determining whether a hold is getting updated while already on the
holds shelf, it's important to also treat hold status 5 as an on-shelf
status.  Status 5 comes into play when the circ.hold_shelf_status_delay
org unit setting is activated and acts as a virtual status indicating
the item is physically en route to the shelf.

Signed-off-by: Bill Erickson <berick@esilibrary.com>