Bug 21281: Surround creator_templates.rows with backquotes

Bug 21281: Surround creator_templates.rows with backquotes

'rows' is a reserved word since MariaDB 10.2.4 and MySQL
https://mariadb.com/kb/en/library/mariadb-1024-release-notes/
https://dev.mysql.com/doc/refman/8.0/en/keywords.html

Test plan:
Do not apply this patch and make sure you recreate the reported issue
Apply this patch and confirm that it is now fixed.

QA will take care for the changes in installer and test files

Signed-off-by: Chris Cormack <chris@bigballofwax.co.nz>
Signed-off-by: Marcel de Rooy <m.de.rooy@rijksmuseum.nl>
Signed-off-by: Nick Clemens <nick@bywatersolutions.com>