upgraded dependencies

vendor/brozot/laravel-fcm/config/fcm.php

@@ -1,14 +0,0 @@
-<?php
-
-return [
-    'driver' => env('FCM_PROTOCOL', 'http'),
-    'log_enabled' => false,
-
-    'http' => [
-        'server_key' => env('FCM_SERVER_KEY', 'Your FCM server key'),
-        'sender_id' => env('FCM_SENDER_ID', 'Your sender id'),
-        'server_send_url' => 'https://fcm.googleapis.com/fcm/send',
-        'server_group_url' => 'https://android.googleapis.com/gcm/notification',
-        'timeout' => 30.0, // in second
-    ],
-];