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>
(cherry picked from commit 7de47202f2876892524c8b68de962c0776f32881)
Signed-off-by: Martin Renvoize <martin.renvoize@ptfs-europe.com>
(cherry picked from commit 9f306898886efe1c2a29f2b622885ec1dfa4fe9a)
Signed-off-by: Fridolin Somers <fridolin.somers@biblibre.com>