curl --request POST \
  --url https://api.sevalla.com/v2/applications/promote \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '{
  "source_app_id": "54fb80af-576c-4fdc-ba4f-b596c83f15a1",
  "target_app_ids": [
    "14fb80af-576c-4fdc-ba4f-b596c83f15a1"
  ]
}'

{
  "promote": [
    {
      "target_app_id": "14fb80af-576c-4fdc-ba4f-b596c83f15a1",
      "deployment_id": "34fb80af-576c-4fdc-ba4f-b596c83f15a1"
    }
  ]
}