Handle resource schedueling requests from caikit

[kellyaa]

Is your feature request related to a problem? Please describe.

The Ray backend can currently request CPU/GPU resources per job, but caikit has no way of passing these in currently.

Describe the solution you'd like

There is an issue open to add this feature, and the Ray backend will need to adapt to the approach caikit will use to specify resources, in order to appropriately schedule jobs according to resource needs

Describe alternatives you've considered

Additional context

Caikit issue: caikit/caikit#494