ORDER-213 - Update the billing address of a commercial order

PUT https://example.com/v1/shop/commercial-orders/{commercialOrderId}/billing-information

Updates the billing address associated with a specific commercial order.

• Use Case: Allows a customer to associate an existing billing address with an order.

• Permissions: Requires a valid API key and client type.

• Multistore Support: Optional store context headers allow filtering by store and storeview.