Update a contact comment

curl --request PATCH \
  --url https://api.useinvent.com/orgs/{org_id}/contacts/{contact_id}/comments/{activity_id} \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "comment": "<string>",
  "attachments": [
    "<string>"
  ]
}
'

{
  "id": "<string>",
  "contact_id": "<string>",
  "comment": "<string>",
  "attachments": [
    {
      "id": "<string>",
      "file_path": "<string>",
      "file_filename": "document.pdf",
      "file_size": 1024,
      "file_mimetype": "application/pdf",
      "file_url": "<string>",
      "created_at": "2023-11-07T05:31:56Z"
    }
  ],
  "created_at": "2023-11-07T05:31:56Z",
  "updated_at": "2023-11-07T05:31:56Z",
  "actor": {
    "id": "<string>",
    "name": "<string>",
    "email": "jsmith@example.com",
    "avatar": "<string>",
    "seen_at": "2023-11-07T05:31:56Z"
  }
}