[Client] [Authorization] [Oauth] client.get_dataset_versions does not support Authentication

[carlosmagan]

Describe the bug
The client.get_dataset_versions method does not handle authentication properly.

In this method we have a plain httpx request that does not include headers, therefore authorization is not supported returning a 401 Unauthorized.
response = httpx.get(url=url, params={"limit": limit})
This method should use the method self._client.get in an analogous way to the get_dataset method

response = self._client.get(
            urljoin(self._base_url, f"v1/datasets/{dataset_id}/versions"),
            params={"limit": limit},
        )

To Reproduce
Steps to reproduce the behavior:

1. Deploy phoenix on a secure environment that requires Oauth authentication
2. Upload a dataset
3. Instantiate a phoenix client in a notebook
4. Query the dataset with the get_dataset_versions method

Expected behavior
get_dataset_versions should handle authorization properly, returning the dataset versions when the client uses Oauth authentication.

Screenshots
Failed behavior:

Expected behavior:

[axiomofjoy]

@carlosmagan Thanks for using Phoenix. We hear you on the need for authentication and are beginning work on this here.

phoenix.Client does not currently support OAuth2, so I am relabeling this as an enhancement request rather than a bug. Please let us know if you have any suggestions for auth-related features you'd like to see.