fix error signed devis auto created contrat

src/Controller/Dashboard/ContratsController.php

@@ -498,6 +498,7 @@ class ContratsController extends AbstractController
 
         $this->em->persist($contrat);
         $this->em->flush();
+        sleep(5);
 
         // Création de la soumission de signature
         $this->signatureClient->createSubmissionContrat($contrat);