Bug 37444: Fix filter for Pickup Location

Bug 37444: Fix filter for Pickup Location

When trying to filter holds to pull using the dropdown filter for Pickup Location, the dropdown has "None" as the only available option because of incorrect column index in ppendingreserves.tt

To reproduce:
1. Place a hold and go to Circulation -> Holds to pull.
2. Use a dropdown filter for Pickup Location, see that only "None" is available to pick, meaning you can't use the filter.
3. Apply the patch.
4. Do the step 2 again and ensure that there's also an option for that hold's pickup location.

Signed-off-by: Eric Garcia <cubingguy714@gmail.com>
Signed-off-by: Laura_Escamilla <laura.escamilla@bywatersolutions.com>
Signed-off-by: Katrin Fischer <katrin.fischer@bsz-bw.de>