Bug 32813: Fix cataloguing/value_builder/barcode.pl

Bug 32813: Fix cataloguing/value_builder/barcode.pl

Use event parameter instead of id.

This is part of the refactoring happening in bug 30975

Test plan:
1. Verify that the plugin continues to work as before

Signed-off-by: Owen Leonard <oleonard@myacpl.org>
Signed-off-by: Marcel de Rooy <m.de.rooy@rijksmuseum.nl>
Signed-off-by: Tomas Cohen Arazi <tomascohen@theke.io>
(cherry picked from commit 8327b7d86e35d9b34e815d5aa686dea6d8814cfe)
Signed-off-by: Martin Renvoize <martin.renvoize@ptfs-europe.com>