Typescript TEST SDK improvements

[IrinaSouth]

• When updating the value with the same "current value", e.g.

  const response = await featureUpdater.updateKey(name, new FeatureStateUpdate({
      lock: false,
      value: currentValue,
  }));

the API returns 202 and "false". However it should be "true" - because it was the successful update, despite it is the same value. Need to update the API yaml

• When updating a JSON value, it seems that it doesn't check the object, so possibly need to check and "stringify" the value

• When updating a boolean value - it should not accept strings or numbers

[rvowles]

host in nodejs also needs to change to hostname