chore: code cleanup with rector and php-cs-fixer

src/Controller/Booking/Create/Step2ParticipantController.php

@@ -136,7 +136,7 @@ class Step2ParticipantController extends AbstractController
         );
 
         return $this->render('booking/create/step_2_participant.html.twig', [
-            'form' => $form->createView(),
+            'form' => $form,
             'participantIndex' => $index,
             'bookingCreateContext' => $bookingCreateContext,
             'bookingDto' => $bookingCreateContext->bookingDto,