Update location of REF KG

[cbizon]

We are hitting https://monarch-sandbox.cgrb.oregonstate.edu/query but it has apparently moved to https://trapi.monarchinitiative.org/query

[patrickkwang]

I've updated the registration with this URL, but I don't seem to have a test query that will run on the KP.

[cbizon]

This seems to produce results:

{
    "message": {
        "query_graph": {
            "nodes": {
                "n0": {
                    "id": "NCBIGene:1017",
                    "category": "biolink:Gene"
                },
                "n1": {
                    "category": "biolink:Pathway"
                }
            },
            "edges": {
                "e01": {
                    "subject": "n0",
                    "object": "n1"
                }
            }
        }
    }
}