message: fix: progress callbacks were not allowing to use default libcurl progress meter
diff: @@ -881,7 +881,7 @@ int Easy::CbProgress(void* clientp, double dltotal, double dlnow, double ultotal
  returnValue = Nan::To<int32_t>(returnValueCallback.ToLocalChecked()).FromJust();
  }
  - if (returnValue) {
  + if (returnValue && returnValue != CURL_PROGRESSFUNC_CONTINUE) {
  obj->isCbProgressAlreadyAborted = true;
  }
  @@ -1027,7 +1027,7 @@ int Easy::CbXferinfo(void* clientp, curl_off_t dltotal, curl_off_t dlnow, curl_o
  returnValue = Nan::To<int32_t>(returnValueCallback.ToLocalChecked()).FromJust();
  }
  - if (returnValue) {
  + if (returnValue && returnValue != CURL_PROGRESSFUNC_CONTINUE) {
  obj->isCbProgressAlreadyAborted = true;
  }
  