Issue #3311799 by Aerzas: CheckoutPaneInterface::getWeight() documented return...

Issue #3311799 by Aerzas: CheckoutPaneInterface::getWeight() documented return type is inconsistent.

modules/checkout/src/Plugin/Commerce/CheckoutPane/CheckoutPaneInterface.php

@@ -90,7 +90,7 @@ interface CheckoutPaneInterface extends ConfigurableInterface, DependentPluginIn
   /**
    * Gets the pane weight.
    *
-   * @return string
+   * @return int
    *   The pane weight.
    */
   public function getWeight();