Enable telemetry with correct setup string by connecting to the backend

[jonthysell]

Summary

Right now telemetry is effectively disabled, as there's no back-end to receive the data. This task is, once the back-end has been created, to replace the current setup string with the new one in main through 0.68-stable.

Motivation

No point in telemetry if it never goes anywhere.

Basic Example

No response

Open Questions

No response

[jonthysell]

This task depends on #10142

[jonthysell]

As we explore 1DS onboarding, the details of this task may change slightly.