curl --request PUT \
  --url https://api.example.com/v1/workshop/stages/{stage_id}/ \
  --header 'Content-Type: application/json' \
  --data '
{
  "name": "<string>",
  "order": -1,
  "pipeline": 123,
  "post_state": 123
}
'

{
  "id": 123,
  "name": "<string>",
  "order": -1,
  "pipeline": 123,
  "post_state": 123
}