.github: Move upload-artifact-s3 to common var (#64435)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/64435
Move upload-artifact-s3 to a common variable to be used amongst our
jinja templates, this should make it easier in the future to update
these images
Signed-off-by: Eli Uriegas <eliuriegas@fb.com>
cc ezyang seemethere malfet lg20987 pytorch/pytorch-dev-infra
Test Plan: Imported from OSS
Reviewed By: malfet
Differential Revision: D30732777
Pulled By: seemethere
fbshipit-source-id: 51cd485f5abae134c3c49dfa878e6303ba8e5f25
