Patch slurmdbd settings

it's actually updating mariadb settings, which is the database system that slurmdbd uses. in the slurm accounting documentation, it recommended some innodb settings, not required though. However, when start slurmdbd up, it will throw an error regarding the settings are not recommended which will delay the start up process for about .3 second. Not much, but will cause the next ansible task to fail. Therefore, here we update mariadb to fit slurm recommendation.