Bug 27205: Check valid pickup location on PUT /holds/:hold_id

Bug 27205: Check valid pickup location on PUT /holds/:hold_id

This patch adds a test for valid pickup locations when updating a hold
through the API.

Tests are adjusted to reflect this change.

To test:
1. Apply this patch
2. Run:
   $ kshell
  k$ prove t/db_dependent/api/v1/holds.t
=> SUCCESS: Tests pass!
3. Sign off :-D

Signed-off-by: Tomas Cohen Arazi <tomascohen@theke.io>
Signed-off-by: Victor Grousset/tuxayo <victor@tuxayo.net>
Signed-off-by: Kyle M Hall <kyle@bywatersolutions.com>
Signed-off-by: Jonathan Druart <jonathan.druart@bugs.koha-community.org>