verta() always returns UTC time, ignoring app.timezone

When I call verta() in my  app (configured with app.timezone = Asia/Tehran), the resulting Verta object is in UTC instead of Tehran time.

```
> date_default_timezone_get()
= "Asia/Tehran"

> config('app.timezone')
= "Asia/Tehran"

> verta(1745094600)
= Hekmatinasser\Verta\Verta @1745094600 {#6746
    date: 1404-01-30 20:30:00.0 +00:00,
  }

> 

```