fix(wc): log correct order ID, not WC_Order object (#1929)

get_order() returns a WC_Order object where an int ID was
expected, triggering a PHP warning on every WooCommerce order
status change. Use get_order_id() instead, as the other callbacks
in this file already do.

Fixes #1928.

Author: codepuncher

connectors/class-connector-woocommerce.php

@@ -495,7 +495,7 @@ public function callback_woocommerce_order_status_changed( $order_id, $old_order
 			'stream'
 		);
 
-		$order_id        = \WC_Order_Factory::get_order( $order_id );
+		$order_id        = \WC_Order_Factory::get_order_id( $order_id );
 		$order_title     = esc_html__( 'Order number', 'stream' ) . ' ' . esc_html( $order_id );
 		$order_type_name = esc_html__( 'order', 'stream' );