[bug] hub install in notebook does not install validator dependencies

[CalebCourier]

Describe the bug If you install a validator inside a notebook with the latest version of guardrails v0.4.3, the validator's dependencies do not get installed. This behaviour does not occur if the installation is performed from a terminal.

To Reproduce Install any validator that has additional dependencies from inside a notebook: i.e. !guardrails hub install hub://guardrails/detect_pii

Expected behavior The validator should be installed (it is), then it's dependencies should be installed (they are not).

Library version: 0.4.3