Add diagnoser to whylabs-toolkit

[christinedraper]

Adds toolkit support for the new diagnoser capability in the WhyLabs API.

Also updates some dependencies for issues found when integrating with the diagnoser capabilities:

• pydantic 1.10.7 caused TypeError: issubclass() arg 1 must be a class
• typing-extensions 4.5.0 caused ImportError: cannot import name 'Doc' from 'typing_extensions'
• urllib3 2.0.1 caused large (probably compressed) responses to be truncated

Had to adjust test_create_custom_metric to use metric_name not metric_label when deleting. It's an unavoidable consequence of changing to have proper names - we dont want to delete by label.

Bumping minor version rather than patch for the above because of the slightly breaking change and deps as well as significant new feature.

[murilommen]

looks good :)
PS: remember to use dev0 only on this branch to do dev releases and test it further and then make bump-release before merging it to main