Configure only 1 task worker to be started

Currently only used to send emails.

Author: Luke Embrey

src/Http/Server.class.php

@@ -83,6 +83,7 @@ public function boot()
         echo "Setting up the HTTP server configuration\n";
         $this->server->set([
             'worker_num' => swoole_cpu_num(),
+            'task_worker_num' => 1,
             'package_max_length' => config("server.maxUploadSize"),
             'document_root' => config("server.publicRoot"),
             'enable_static_handler' => true,