Upgrade to Laravel 9 (#4413)

Co-authored-by: DaneEveritt <dane@daneeveritt.com>

config/broadcasting.php

@@ -10,9 +10,10 @@ return [
     | framework when an event needs to be broadcast. You may set this to
     | any of the connections defined in the "connections" array below.
     |
-    | Supported: "pusher", "redis", "log", "null"
+    | Supported: "pusher", "ably", "redis", "log", "null"
     |
     */
+
     'default' => env('BROADCAST_DRIVER', 'null'),
 
     /*
@@ -29,9 +30,24 @@ return [
     'connections' => [
         'pusher' => [
             'driver' => 'pusher',
-            'key' => env('PUSHER_KEY'),
-            'secret' => env('PUSHER_SECRET'),
+            'key' => env('PUSHER_APP_KEY'),
+            'secret' => env('PUSHER_APP_SECRET'),
             'app_id' => env('PUSHER_APP_ID'),
+            'options' => [
+                'host' => env('PUSHER_HOST', 'api-' . env('PUSHER_APP_CLUSTER', 'mt1') . '.pusher.com') ?: 'api-' . env('PUSHER_APP_CLUSTER', 'mt1') . '.pusher.com',
+                'port' => env('PUSHER_PORT', 443),
+                'scheme' => env('PUSHER_SCHEME', 'https'),
+                'encrypted' => true,
+                'useTLS' => env('PUSHER_SCHEME', 'https') === 'https',
+            ],
+            'client_options' => [
+                // Guzzle client options: https://docs.guzzlephp.org/en/stable/request-options.html
+            ],
+        ],
+
+        'ably' => [
+            'driver' => 'ably',
+            'key' => env('ABLY_KEY'),
         ],
 
         'redis' => [