bump whylabs-client to 0.6.0 (#1460)

## Description
Updating whylabs-client to reflect latest changes on the API

- [x] I have reviewed the [Guidelines for Contributing](CONTRIBUTING.md)
and the [Code of Conduct](CODE_OF_CONDUCT.md).

---------

Co-authored-by: Jamie Broomall <[email protected]>

Author: murilommen