Currently the epp server startup logic in [integration tests](https://github.com/kubernetes-sigs/gateway-api-inference-extension/blob/main/test/integration/epp/harness.go#L119) is partially different from [prod](https://github.com/tomatillo-and-multiverse/gateway-api-inference-extension-merged/blob/main/cmd/epp/main.go#L31); we need to unify the two Ideally we want the integration test to instantiate a [Runner](https://github.com/tomatillo-and-multiverse/gateway-api-inference-extension-merged/blob/main/cmd/epp/runner/runner.go#L105) with some injected datastore state, including metrics.
Currently the epp server startup logic in integration tests is partially different from prod; we need to unify the two
Ideally we want the integration test to instantiate a Runner with some injected datastore state, including metrics.