text: Title: Add Ray workflows adapter
  Body: # what 
  Ray workflows seems like something we could easily add too https://docs.ray.io/en/latest/workflows/concepts.html given that we now have GraphAdapters
  
  # Task
  - [x] Implement something very similar to the RayGraphAdapter, i.e. RayWorkflowGraphAdapter. The hypothesis is that then we just need to use workflow step function to wrap hamilton functions.
  - [ ] implement an integration test for it
  - [x] Implement a hello world with it
  
  # Context
  _Originally posted by @skrawcz in https://github.com/stitchfix/hamilton/issues/10#issuecomment-1029427745_