Update documentation for customers clarifying that our post endpoint is avail in fed (#3224)

Co-authored-by: ci.datadog-api-spec <packages@datadoghq.com>

Author: api-clients-generation-pipeline[bot]

.generated-info

@@ -1,4 +1,4 @@
 {
-  "spec_repo_commit": "2ffdc3f",
-  "generated": "2025-07-16 19:15:51.322"
+  "spec_repo_commit": "671ba51",
+  "generated": "2025-07-16 20:18:22.335"
 }

.generator/schemas/v2/openapi.yaml

@@ -48677,9 +48677,7 @@ paths:
         for more details.\n\n\u274C For use cases involving other event categories,
         use the V1 endpoint or reach out to [support](https://www.datadoghq.com/support/).\n\n\u274C
         Notifications are not yet supported for events sent to this endpoint. Use
-        the V1 endpoint for notification functionality.\n\n\u274C This endpoint is
-        not available for the Government (US1-FED) site. Contact your account representative
-        for more information."
+        the V1 endpoint for notification functionality."
       operationId: CreateEvent
       requestBody:
         content:

api/datadogV2/api_events.go

@@ -25,8 +25,6 @@ type EventsApi datadog.Service
 // ❌ For use cases involving other event categories, use the V1 endpoint or reach out to [support](https://www.datadoghq.com/support/).
 //
 // ❌ Notifications are not yet supported for events sent to this endpoint. Use the V1 endpoint for notification functionality.
-//
-// ❌ This endpoint is not available for the Government (US1-FED) site. Contact your account representative for more information.
 func (a *EventsApi) CreateEvent(ctx _context.Context, body EventCreateRequestPayload) (EventCreateResponsePayload, *_nethttp.Response, error) {
 	var (
 		localVarHTTPMethod  = _nethttp.MethodPost