Prod monitoring: fix so we can emit all four metrics

We have not been able to see function_orchestrator_nonrequesterror and function_orchestrator_outgoingresponsecount, 2 of our 4 metrics we want to see on our Grafana board. It seems the two that haven't been showing was due to them living inside a dead code block, aka. a function that we never even trigger. Moving these guys out of here and invoking them inside evaluate.js resolves this. I think this is a good enough fix for now and as more updates come through in our orchestrator we can refactor.

Bug: T364410