[JIT] add keep_unique_names arg to canonicalize python bindings (#74074)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/74074
Adds the keep_unique_names argument to the python binding for Canonicalize.
Test Plan: Imported from OSS
Reviewed By: eellison
Differential Revision: D34821816
Pulled By: davidberard98
fbshipit-source-id: 7932562cb20e504494f53b83484393bb296e717a
(cherry picked from commit 62bbcff972287550eeaa3ddb0e5c35ff2bbe60ad)
