Filter deployments by model name

[jlewi]

Follow up to #93

It would be nice to filter deployments by model name as a way to look up the deployment for a specific model.
gcloud's filter argument and kubectl jsonpath argument provide some examples of what the semantics of the filtering might be

[mattt]

@jlewi Support for listing deployments landed in v0.8.0. Adding a --filter option seems like a nice touch. In the meantime, you can filter with jq:

replicate deployments list | jq '.results[] | select(.current_release.model == "meta/meta-llama-3-8b")'