Update cockpit-limitations.mdx (#4045)

Author: fpagny

observability/cockpit/reference-content/cockpit-limitations.mdx

@@ -72,6 +72,7 @@ The following table provides details about the products that are integrated into
 |----------------------------|-----------------|-----------------|-----------------|
 | Instances                  | **Integrated*** | Not integrated  | Not integrated  |
 | Managed Inference          | **Integrated*** | **Integrated*** | Not integrated  |
+| Generative APIs            | **Integrated*** | Not integrated  | Not integrated  |
 | Elastic Metal              | Not integrated  | Not integrated  | Not integrated  |
 | Apple silicon              | Not integrated  | Not integrated  | Not integrated  |
 | Kubernetes Kapsule         | **Integrated*** | **Integrated*** | **Integrated**  |