feat: unify pickup selection

tests/BusProNet/DataProcessor/BookingDataProcessorTest.php

@@ -262,7 +262,7 @@ class BookingDataProcessorTest extends TestCase
         $busService = $this->createMockService(1);
         $busService->subType = 'BUS';
         $participant->transportationOutbound = $busService;
-        $participant->pickupOutbound = $this->createMockPickup(1);
+        $participant->pickup = $this->createMockPickup(1);
 
         return $formData;
     }
@@ -456,7 +456,7 @@ class BookingDataProcessorTest extends TestCase
         $participant->rentals = [];
         $participant->transportationOutbound = $this->createMockService(1);
         $participant->transportationInbound = $this->createMockService(2);
-        $participant->pickupOutbound = null;
+        $participant->pickup = null;
 
         return $participant;
     }