chore(docs): Updated API Reference (automated) (#10641)

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

Co-authored-by: Oli Juhl <59018053+olivermrbl@users.noreply.github.com>
Co-authored-by: Shahed Nasser <27354907+shahednasser@users.noreply.github.com>

www/apps/api-reference/specs/store/code_samples/Shell/store_shipping-options_{id}_calculate/post.sh

@@ -0,0 +1,6 @@
+curl -X POST '{backend_url}/store/shipping-options/{id}/calculate' \
+-H 'x-publishable-api-key: {your_publishable_api_key}' \
+-H 'Content-Type: application/json' \
+--data-raw '{
+  "cart_id": "{value}"
+}'