curl --request PATCH \
  --url https://api.galileo.ai/v2/groups/{group_id}/members/{user_id} \
  --header 'Content-Type: application/json' \
  --header 'Galileo-API-Key: <api-key>' \
  --data '{
  "role": "maintainer"
}'

{
  "id": "<string>",
  "permissions": [],
  "user_id": "<string>",
  "group_role": "maintainer",
  "first_name": "<string>",
  "last_name": "<string>",
  "email": "<string>",
  "created_at": "2023-11-07T05:31:56Z"
}