ENGCOM-5232: [Backport] Replace hardcoded CarierCode from createShippingMethod() #23163

Author: sidolov

app/code/Magento/OfflineShipping/Model/Carrier/Tablerate.php

@@ -267,7 +267,7 @@ private function createShippingMethod($shippingPrice, $cost)
         /** @var  \Magento\Quote\Model\Quote\Address\RateResult\Method $method */
         $method = $this->_resultMethodFactory->create();
 
-        $method->setCarrier('tablerate');
+        $method->setCarrier($this->getCarrierCode());
         $method->setCarrierTitle($this->getConfigData('title'));
 
         $method->setMethod('bestway');