fix(tests): Make PostgreSQL unit tests less flacky by ordering

Signed-off-by: Joas Schilling <[email protected]>

tests/lib/DB/QueryBuilder/QueryBuilderTest.php

@@ -326,7 +326,7 @@ public function testSelectDistinctMultiple() {
 				'appid',
 				$this->queryBuilder->expr()->literal('testFirstResult1')
 			))
-			->orderBy('appid', 'DESC');
+			->orderBy('configkey', 'ASC');
 
 		$query = $this->queryBuilder->execute();
 		$rows = $query->fetchAll();