feat: alternative date format in url argument for travelinfo

public/typo3conf/ext/ep_products/Classes/Controller/TravelinfoController.php

@@ -59,6 +59,10 @@ class TravelinfoController extends ActionController
     {
         $product = $travelinfo->getProduct();
 
+        if (preg_match('/^\d{2}\d{2}\d{4}$/', $travelDate)) {
+            $travelDate = (\DateTimeImmutable::createFromFormat('dmY', $travelDate))->format('Y-m-d');
+        }
+
         /** @var Date $date */
         $date = $this->dateRepository->findForProductAndDate($product, $travelDate)->getFirst();
         $hasCourses = null !== $date && 0 < count($date->getServicesGeneral('KUR'));