normalize actions on route:list artisan (#23148)

remove leading slash

src/Illuminate/Foundation/Console/RouteListCommand.php

@@ -110,7 +110,7 @@ protected function getRouteInformation(Route $route)
             'method' => implode('|', $route->methods()),
             'uri'    => $route->uri(),
             'name'   => $route->getName(),
-            'action' => $route->getActionName(),
+            'action' => ltrim($route->getActionName(), '\\'),
             'middleware' => $this->getMiddleware($route),
         ]);
     }