Bug 33297: (follow-up) DBRev for existing databases

Bug 33297: (follow-up) DBRev for existing databases

Test plan :
1.1) Start from a Koha 22.05
1.2) Upgrade to master
=> Check the upgrade says :
   Wrong system preference 'RetainPatronSearchTerms' renamed 'RetainPatronsSearchTerms'
2.1) Start from a Koha 22.05
2.2) Upgrade to 22.11
2.3) Via interface change system preference 'RetainPatronsSearchTerms' and save
2.4) Upgrade to master
=> Check the upgrade says :
   Wrong system preference 'RetainPatronSearchTerms' deleted

Signed-off-by: Marcel de Rooy <m.de.rooy@rijksmuseum.nl>
Signed-off-by: Jonathan Druart <jonathan.druart@bugs.koha-community.org>
Signed-off-by: Tomas Cohen Arazi <tomascohen@theke.io>