Generate github actions files for bistro
Generate github actions files for bistro

Summary: Modeled this after the current github actions setup for eden, which seems to be working fine. The actual github actions file is generated by getdeps. The getdeps build has been working internally just fine for a few months now.

Reviewed By: snarkmaster

Differential Revision: D27039070

fbshipit-source-id: 386ed9db8d764dad19ec0ff8721598b536780eb2

facebook/bistro,facebook/bistro,facebook/bistro,facebook/bistro,facebook/bistro,facebook/bistro