Merge pull request #25269 from allencloud/update-remote-api-docs-about-409
add status code 409 in attach in docs
(cherry picked from commit 56cbfc587f3e30d7587a4a4969d5497aa07edc06)
Signed-off-by: Tibor Vass <tibor@docker.com>
Conflicts:
docs/reference/api/docker_remote_api_v1.25.md