MC-36836: Stabilize integration tests

Author: serhii-balko

dev/tests/integration/testsuite/Magento/Multishipping/Fixtures/quote_with_configurable_product.php

@@ -24,7 +24,7 @@
 $objectManager = Bootstrap::getObjectManager();
 /** @var ProductRepositoryInterface $productRepository */
 $productRepository = $objectManager->create(ProductRepositoryInterface::class);
-$product = $productRepository->getById(10);
+$product = $productRepository->get('simple_10');
 $product->setStockData(['use_config_manage_stock' => 1, 'qty' => 4, 'is_qty_decimal' => 0, 'is_in_stock' => 1]);
 $productRepository->save($product);