chore: fix phpstan errors

src/Form/Service/ParticipantSkiPassFieldHandler.php

@@ -129,6 +129,7 @@ class ParticipantSkiPassFieldHandler extends AbstractParticipantFieldHandler
         $participant->skiPass = $validSelection;
     }
 
+    /** @param array<int, Service> $availableSkipasses */
     private function getSelectedAutoBookSkiPassId(
         ParticipantDto $participant,
         array $availableSkipasses,
@@ -184,10 +185,10 @@ class ParticipantSkiPassFieldHandler extends AbstractParticipantFieldHandler
      * This method checks both age constraints (via birth year ranges) and
      * date constraints (skipass dates must be within travel dates).
      *
-     * @param mixed      $selectedService   The selected skipass to validate
-     * @param array      $availableServices Array of available skipasses
-     * @param BookingDto $bookingDto        The booking DTO for context
-     * @param int        $participantIndex  The participant index for age evaluation
+     * @param mixed               $selectedService   The selected skipass to validate
+     * @param array<int, Service> $availableServices Array of available skipasses
+     * @param BookingDto          $bookingDto        The booking DTO for context
+     * @param int                 $participantIndex  The participant index for age evaluation
      *
      * @return bool True if the skipass is valid for the participant, false otherwise
      */