.github: Add fbsync to push triggers (#69718)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/69718
canary is now pushing to fbsync so we should change our workflows to
reflect that.
Signed-off-by: Eli Uriegas <eliuriegas@fb.com>
Test Plan: Imported from OSS
Reviewed By: malfet, janeyx99
Differential Revision: D32999967
Pulled By: seemethere
fbshipit-source-id: bc4bc9afd2d73c53f91d3af3b81aca1b31f665a4
