Fix for a deprecated parameter:

"Implicitly marking parameter $container as nullable is deprecated, the explicit nullable type must be used instead"

Author: hrsa

src/Routing/Router.php

@@ -24,7 +24,7 @@ class Router
     /** @var Container */
     protected $container;
 
-    public function __construct(?Container $container = null)
+    public function __construct(?Container $container)
     {
         $this->container = $container ?: new Container;