Apply fixes from StyleCI (#462)

Author: rennokki

tests/Channels/PresenceChannelReplicationTest.php

@@ -50,9 +50,9 @@ public function clients_with_valid_auth_signatures_can_join_presence_channels()
                 json_encode($channelData),
             ])
             ->assertCalledWithArgs('hgetall', [
-                '1234:presence-channel'
+                '1234:presence-channel',
             ]);
-            // TODO: This fails somehow
+        // TODO: This fails somehow
             // Debugging shows the exact same pattern as good.
             /* ->assertCalledWithArgs('publish', [
                 '1234:presence-channel',

tests/Channels/PresenceChannelTest.php

@@ -2,7 +2,6 @@
 
 namespace BeyondCode\LaravelWebSockets\Tests\Channels;
 
-use BeyondCode\LaravelWebSockets\PubSub\ReplicationInterface;
 use BeyondCode\LaravelWebSockets\Tests\Mocks\Message;
 use BeyondCode\LaravelWebSockets\Tests\TestCase;
 use BeyondCode\LaravelWebSockets\WebSockets\Exceptions\InvalidSignature;