Summary:
There are some steps known to be failing on master. This pollutes checks for unrelated PRs.
This PR will make it so that PRs submitted by anyone other than myself will no-op on these steps.
Future work: Have an array of whitelisted contributors, and make it much easier to turn individual tests on and off.
Pull Request resolved: https://github.com/facebook/react-native/pull/20818
Differential Revision: D9484946
Pulled By: hramos
fbshipit-source-id: d6c187b341f13552b33d0f1d569b65f6c66ae48f
