fix: Run migration sql as statement so that the primary db node is used

Signed-off-by: Julius Härtl <jus@bitgrid.net>

lib/private/DB/Migrator.php

@@ -139,7 +139,7 @@ protected function applySchema(Schema $targetSchema, ?Connection $connection = n
 		$step = 0;
 		foreach ($sqls as $sql) {
 			$this->emit($sql, $step++, count($sqls));
-			$connection->executeQuery($sql);
+			$connection->executeStatement($sql);
 		}
 		if (!$connection->getDatabasePlatform() instanceof MySQLPlatform) {
 			$connection->commit();