chore(docs): Updated API Reference (v2) (#9437)

Automated changes by [create-pull-request](https://github.com/peter-evans/create-pull-request) GitHub action

Co-authored-by: Shahed Nasser <27354907+shahednasser@users.noreply.github.com>

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

@@ -84,5 +84,11 @@
  *     description: The variant's options, where the key is an option's name, and the value is the option's value.
  *     example:
  *       Color: Black
+ *   inventory_items:
+ *     type: array
+ *     description: The variant's inventory items to create.
+ *     items:
+ *       $ref: "#/components/schemas/AdminCreateProductVariantInventoryKit"
+ * 
 */