Bug 37304: Fix created by filter in Acquisitions advanced search

Bug 37304: Fix created by filter in Acquisitions advanced search

This patch updates the field for the created by filter from
ui.item.borrowernumber to ui.item.patron_id

Test plan:
1. Add a vendor and a basket
2. Use advanced order search to search for created by 'koha'
3. Use the autofill dropdown to make the selection and click 'Search'
4. Your search returned no results.
5. Apply patch and repeat steps 2 and 3
6. Confirm the search returns the basket you created earlier

Signed-off-by: Roman Dolny <roman.dolny@jezuici.pl>
Signed-off-by: Chris Cormack <chris@bigballofwax.co.nz>
Signed-off-by: Katrin Fischer <katrin.fischer@bsz-bw.de>