adds missing providers

Author: vmcvlad

bootstrap/providers.php

@@ -2,4 +2,7 @@
 
 return [
     App\Providers\AppServiceProvider::class,
+    App\Providers\CalendarServiceProvider::class,
+    App\Providers\HorizonServiceProvider::class,
+    App\Providers\TelescopeServiceProvider::class,
 ];