[Notifier] Add Firebase bridge

Author: Jeroeny

Exception/UnsupportedSchemeException.php

@@ -42,6 +42,10 @@ class UnsupportedSchemeException extends LogicException
             'class' => Bridge\Twilio\TwilioTransportFactory::class,
             'package' => 'symfony/twilio-notifier',
         ],
+        'firebase' => [
+            'class' => Bridge\Firebase\FirebaseTransportFactory::class,
+            'package' => 'symfony/firebase-notifier',
+        ],
     ];
 
     /**

Transport.php

@@ -11,6 +11,7 @@
 
 namespace Symfony\Component\Notifier;
 
+use Symfony\Component\Notifier\Bridge\Firebase\FirebaseTransportFactory;
 use Symfony\Component\Notifier\Bridge\Mattermost\MattermostTransportFactory;
 use Symfony\Component\Notifier\Bridge\Nexmo\NexmoTransportFactory;
 use Symfony\Component\Notifier\Bridge\Slack\SlackTransportFactory;
@@ -40,6 +41,7 @@ class Transport
         MattermostTransportFactory::class,
         NexmoTransportFactory::class,
         TwilioTransportFactory::class,
+        FirebaseTransportFactory::class,
     ];
 
     private $factories;