docs: generate OAS after cart promotion fixes (#11351)

www/utils/generated/oas-output/schemas/StoreCartAddPromotion.ts

@@ -0,0 +1,18 @@
+/**
+ * @schema StoreCartAddPromotion
+ * type: object
+ * description: The promotion's details.
+ * required:
+ *   - promo_codes
+ * properties:
+ *   promo_codes:
+ *     type: array
+ *     description: Promotion codes to add to the cart.
+ *     items:
+ *       type: string
+ *       title: promo_codes
+ *       description: A promotion code.
+ * x-schemaName: StoreCartAddPromotion
+ * 
+*/
+