change realization request flightid long to uuid

airport-manager-api/src/main/java/cz/muni/fi/pa165/api/flight/requests/FlightRealizationRequest.java

@@ -12,7 +12,7 @@ import java.util.UUID;
 @AllArgsConstructor
 public class FlightRealizationRequest {
 
-    private Long flightId;
+    private UUID flightId;
     private String report;
     private Duration duration;
     private LocalDateTime departureTime;