plugin/storage/grpc/factory.go:101

return f.config.ToClientConnWithOptions(context.Background(), componenttest.NewNopHost(), telset, clientOpts...)

• when running in v2 we should be able to pass a real Host initialized by OTEL Collector
• when running in v1 mode it's ok to keep using componenttest.NewNopHost() (it means we already made a breaking change where metrics are not reported from this client, if they ever were)