Bug 25050: Unit tests

Bug 25050: Unit tests

This patch simplay alters the data we use for the tests, doing so causes them to fail

To test:
1 - Apply only this patch
2 - prove -v t/Koha/SearchEngine/Elasticsearch.t
3 - It fails!
4 - Apply next patch
5 - It passes!

Signed-off-by: Andrew Fuerste-Henry <andrew@bywatersolutions.com>
Signed-off-by: Jonathan Druart <jonathan.druart@bugs.koha-community.org>
Signed-off-by: Martin Renvoize <martin.renvoize@ptfs-europe.com>
Signed-off-by: Joy Nelson <joy@bywatersolutions.com>