Get team member

curl --request GET \
  --url {schemes}://api.upsun.com/teams/{team_id}/members/{user_id} \
  --header 'Authorization: Bearer <token>'

{
  "team_id": "<string>",
  "user_id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
  "created_at": "2023-11-07T05:31:56Z",
  "updated_at": "2023-11-07T05:31:56Z"
}