buckification (#460)

Summary:
Pull Request resolved: https://github.com/pytorch/executorch/pull/460

This commit was generated using `mgt import`.
buckification for third-party libraries:
third-party/pypi/pyyaml/6.0.1
third-party/pypi/tblib/1.7.0
third-party/pypi/sagemaker/2.182.0

Reviewed By: luccabb, A-Kokolis

Differential Revision: D48854790

fbshipit-source-id: 94f23fb2562834eff76a71c5d01e6b4bf8e7f20a