Mark PATCH /api/v2/incidents/incident_id/attachments endpoint as deprecated (#2937)

Co-authored-by: ci.datadog-api-spec <[email protected]>

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

.generator/schemas/v2/openapi.yaml

@@ -65621,6 +65621,7 @@ paths:
 
         If you have any feedback, contact [Datadog support](https://docs.datadoghq.com/help/).'
     patch:
+      deprecated: true
       description: The bulk update endpoint for creating, updating, and deleting attachments
         for a given incident.
       operationId: UpdateIncidentAttachments
@@ -65659,9 +65660,7 @@ paths:
         operator: OR
         permissions:
         - incident_write
-      x-unstable: '**Note**: This endpoint is in public beta.
-
-        If you have any feedback, contact [Datadog support](https://docs.datadoghq.com/help/).'
+      x-unstable: '**Note**: This endpoint is deprecated.'
   /api/v2/incidents/{incident_id}/impacts:
     get:
       description: Get all impacts for an incident.

src/datadog_api_client/v2/api/incidents_api.py

@@ -5,6 +5,7 @@
 
 import collections
 from typing import Any, Dict, List, Union
+import warnings
 
 from datadog_api_client.api_client import ApiClient, Endpoint as _Endpoint
 from datadog_api_client.configuration import Configuration
@@ -1848,7 +1849,7 @@ def update_incident_attachments(
         *,
         include: Union[List[IncidentAttachmentRelatedObject], UnsetType] = unset,
     ) -> IncidentAttachmentUpdateResponse:
-        """Create, update, and delete incident attachments.
+        """Create, update, and delete incident attachments. **Deprecated**.
 
         The bulk update endpoint for creating, updating, and deleting attachments for a given incident.
 
@@ -1868,6 +1869,7 @@ def update_incident_attachments(
 
         kwargs["body"] = body
 
+        warnings.warn("update_incident_attachments is deprecated", DeprecationWarning, stacklevel=2)
         return self._update_incident_attachments_endpoint.call_with_http_info(**kwargs)
 
     def update_incident_integration(