Sort CirlceCI config.yml keys to facilitate diff review after codegen (#38496)
Summary:
This will support another round of migration from hand-written configs to code generation.
Pull Request resolved: https://github.com/pytorch/pytorch/pull/38496
Differential Revision: D21581624
Pulled By: kostmo
fbshipit-source-id: aed814ef6d4fc6af9ce092727b2dacc99de14ae0
