Laravel 9 Update (#1413)

Update to Laravel 9 and PHP 8+

Co-authored-by: B.Fatih KOZ <fatih.koz@gmail.com>

app/Services/AirlineService.php

@@ -11,10 +11,10 @@ use App\Repositories\SubfleetRepository;
 
 class AirlineService extends Service
 {
-    private $airlineRepo;
-    private $flightRepo;
-    private $pirepRepo;
-    private $subfleetRepo;
+    private AirlineRepository $airlineRepo;
+    private FlightRepository $flightRepo;
+    private PirepRepository $pirepRepo;
+    private SubfleetRepository $subfleetRepo;
 
     public function __construct(
         AirlineRepository $airlineRepo,
@@ -33,6 +33,8 @@ class AirlineService extends Service
      *
      * @param array $attr
      *
+     * @throws \Prettus\Validator\Exceptions\ValidatorException
+     *
      * @return \App\Models\Airline
      */
     public function createAirline(array $attr): Airline