Fix @var annotation in ActiveRecordTestTrait (#20519)

Author: max-s-lab

tests/framework/ar/ActiveRecordTestTrait.php

@@ -1297,7 +1297,7 @@ public function testViaWithCallable()
         /** @var ActiveRecordInterface $orderClass */
         $orderClass = $this->getOrderClass();
 
-        /* @var Order $order */
+        /** @var Order $order */
         $order = $orderClass::findOne(2);
 
         $expensiveItems = $order->expensiveItemsUsingViaWithCallable;