Summary: Ref: [Secrets documentation](https://help.github.com/en/actions/configuring-and-managing-workflows/creating-and-storing-encrypted-secrets#using-encrypted-secrets-in-a-workflow) In combination with setting the secrets in the GitHub settings, this should fully migrate yoga to GH actions. Pull Request resolved: https://github.com/facebook/yoga/pull/1005 Test Plan: GitHub Actions CI on the PR attached to this diff Reviewed By: SidharthGuglani Differential Revision: D21574995 Pulled By: bigfootjon fbshipit-source-id: e9ee6d7cf1ae131afdc3aa3778667f1e9b9de833