Added missing gate for bulk checkout

Signed-off-by: snipe <snipe@snipe.net>

app/Http/Controllers/Assets/BulkAssetsController.php

@@ -224,6 +224,9 @@ class BulkAssetsController extends Controller
      */
     public function storeCheckout(Request $request)
     {
+
+        $this->authorize('checkout', Asset::class);
+
         try {
             $admin = Auth::user();