shelley version shows a failure in JSON unmarshalling build-info.json

$ shelley version
Warning: failed to parse build-info.json: json: cannot unmarshal string into Go struct field .timestamp of type int64
{
  "commit": "64424ea9729f2ee1e82cd7af53fba7438bc9fd69",
  "commit_time": "2025-12-26T22:50:19Z"
}