Bug 34589: Only update users if permission is added

Bug 34589: Only update users if permission is added

To test:
1 - Assign a user 'edit_items' permission
2 - Manually run the update
    perl -e 'use C4::Installer; warn Data::Dumper::Dumper(C4::Installer::run_db_rev("installer/data/mysql/db_revs/221200003.pl"));'
3 - Edit patron permissions
4 - Note they now have edit_any_item permission
5 - Remove that permission
6 - Run the update again
7 - Edit patron permissions
8 - They have edit_any_item again - remove it
9 - Apply patch
10 - Run the update
11 - Edit patron permissions
12 - No new permissions added!
13 - sudo koha-mysql kohadev
     DELETE FROM permissions WHERE code = 'edit_any_item'
14 - Run the update again
15 - Edit patron permissions
16 - They do have edit_any_item

Signed-off-by: Émily-Rose Francoeur <emily-rose.francoeur@inLibro.com>
Signed-off-by: Marcel de Rooy <m.de.rooy@rijksmuseum.nl>
Signed-off-by: Tomas Cohen Arazi <tomascohen@theke.io>