Suppress potential SQL injection warning as they are false positives

Signed-off-by: Morris Jobke <hey@morrisjobke.de>

lib/private/BackgroundJob/JobList.php

@@ -180,6 +180,7 @@ class JobList implements IJobList {
 	 * get the next job in the list
 	 *
 	 * @return IJob|null
+	 * @suppress SqlInjectionChecker
 	 */
 	public function getNext() {
 		$query = $this->connection->getQueryBuilder();

lib/private/Repair/NC14/RepairPendingCronJobs.php

@@ -53,6 +53,9 @@ class RepairPendingCronJobs implements IRepairStep {
 		return version_compare($versionFromBeforeUpdate, '14.0.0.9', '<');
 	}
 
+	/**
+	 * @suppress SqlInjectionChecker
+	 */
 	private function repair() {
 		$reset = $this->connection->getQueryBuilder();
 		$reset->update('jobs')