feature/cierres (#25)

Varios cambios

Co-authored-by: Juan Pablo Vial <jpvialb@incoviba.cl>
Reviewed-on: #25

app/src/Exception/ServiceAction/Create.php

@@ -6,7 +6,7 @@ use Incoviba\Exception\ServiceActionFail;
 
 class Create extends ServiceActionFail
 {
-    public function __construct(string $service, Throwable $previous = null)
+    public function __construct(string $service, ?Throwable $previous = null)
     {
         $action = 'create';
         $code = 1;