Merge branch '6.4' into 7.1

* 6.4:
  fix: notifier push channel bus abstract arg

Author: nicolas-grekas

src/Symfony/Bundle/FrameworkBundle/DependencyInjection/FrameworkExtension.php

@@ -2714,7 +2714,7 @@ private function registerNotifierConfiguration(array $config, ContainerBuilder $
             $container->removeDefinition('notifier.channel.email');
         }
 
-        foreach (['texter', 'chatter', 'notifier.channel.chat', 'notifier.channel.email', 'notifier.channel.sms'] as $serviceId) {
+        foreach (['texter', 'chatter', 'notifier.channel.chat', 'notifier.channel.email', 'notifier.channel.sms', 'notifier.channel.push'] as $serviceId) {
             if (!$container->hasDefinition($serviceId)) {
                 continue;
             }

src/Symfony/Bundle/FrameworkBundle/Resources/config/notifier.php

@@ -73,7 +73,10 @@
             ->tag('notifier.channel', ['channel' => 'email'])
 
         ->set('notifier.channel.push', PushChannel::class)
-            ->args([service('texter.transports'), service('messenger.default_bus')->ignoreOnInvalid()])
+            ->args([
+                service('texter.transports'),
+                abstract_arg('message bus'),
+            ])
             ->tag('notifier.channel', ['channel' => 'push'])
 
         ->set('notifier.monolog_handler', NotifierHandler::class)