[spiral/router] Improve performance on bootstrap

[butschster]

Description

There are two place where we check route uri handler using try/catch

try {
    $uriHandler = $route->getUriHandler();
} catch (\Throwable) {
    $uriHandler = $this->uriHandler;
}

https://github.com/spiral/framework/blob/master/src/Router/src/RouteGroup.php#L106
https://github.com/spiral/framework/blob/master/src/Router/src/Router.php#L207

But using try catch my be slower that using proper method like $route->hasUriHandler()