refactor: fix spaces according to PHP CS Fixer

Author: Elias-Black

system/Router/RouteCollection.php

@@ -1540,7 +1540,7 @@ protected function create(string $verb, string $from, $to, ?array $options = nul
         // routes should always be the "source of truth".
         // this works only because discovered routes are added just prior
         // to attempting to route the request.
-        $routeKeyExists = isset($this->routes[$verb][$routeKey]);
+        $routeKeyExists  = isset($this->routes[$verb][$routeKey]);
         $routeNameExists = isset($this->routesNames[$verb][$routeKey]);
         if (($routeNameExists || $routeKeyExists) && ! $overwrite) {
             return;