update all github action workflows
update all github action workflows

Summary:
I'm about to upgrade from checkout v1 to checkout v2. First, update
the GitHub action workflows for all projects.

Reviewed By: ahornby

Differential Revision: D33834784

fbshipit-source-id: f4cba24f1a589588dbfaf7ad7ada7122dd8284cb

facebook/folly,facebook/folly,facebook/folly,facebook/folly,facebook/folly