Stop using ContainerAwareInterface in migrations

migrations/Version20190826204730.php

@@ -45,10 +45,8 @@ final class Version20190826204730 extends WallabagMigration
 
     public function postUp(Schema $schema): void
     {
-        foreach ($this->container->getParameter('wallabag.default_ignore_origin_instance_rules') as $entity) {
-            $previous_rule = $this->container
-                ->get('doctrine.orm.default_entity_manager')
-                ->getConnection()
+        foreach ($this->defaultIgnoreOriginInstanceRules as $entity) {
+            $previous_rule = $this->connection
                 ->fetchOne('SELECT * FROM ' . $this->getTable('ignore_origin_instance_rule') . " WHERE rule = '" . $entity['rule'] . "'");
 
             if (false === $previous_rule) {