Add a new note to a conversation

curl --request POST \
  --url https://1-some-client.some-server.healvi-chat/third-party/v1/conversation/{conversationId}/notes \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "text": "<string>"
}
'

{
  "id": 123,
  "conversation_id": 123,
  "text": "<string>",
  "created_at": "2023-01-01T12:00:00Z",
  "updated_at": "2023-01-01T12:00:00Z"
}