Move the setting of CollectMetrics to before constructing the Proxy

[craigmiskell-gitlab]

It's not possible to move the entire Metrics setup to before the proxy because it needs the router (which needs the proxy)

Description

Ensures collecting of metrics actually works

Checklist

• [ ] Code compiles correctly
• [ ] Created tests (if appropriate)
• [ ] All tests passing
• [ ] Extended the README / documentation (if necessary)

[dropwhile]

thanks!

[SuperQ]

Thanks @craigmiskell-gitlab!