Switch metadata library from using py3lite-types to python-types
Switch metadata library from using py3lite-types to python-types

Summary: As a part of the py3lite -> python migration, this one is explicitly named in the bzl file so migrating it.

Reviewed By: junzh0u

Differential Revision: D35063706

fbshipit-source-id: 609412456931b675725cf038f3c763508a080ec4

facebook/fbthrift,facebook/fbthrift,facebook/fbthrift,facebook/fbthrift,facebook/fbthrift,facebook/fbthrift,facebook/fbthrift,facebook/fbthrift,facebook/fbthrift