Merge pull request #25349 from thaJeztah/carry-25174-api-docs-update

[carry 25174] 409 status code result to create service
(cherry picked from commit 2cb1281a4abe20f84cafa9d46f5660355e59ce44)

Signed-off-by: Tibor Vass <tibor@docker.com>

Conflicts:
	docs/reference/api/docker_remote_api_v1.24.md
	docs/reference/api/docker_remote_api_v1.25.md

docs/reference/api/docker_remote_api_v1.24.md

@@ -3981,6 +3981,7 @@ Create a service
 
 - **201** – no error
 - **406** – server error or node is not part of a Swarm
+- **409** – name conflicts with an existing object
 
 JSON Parameters: