Telemetry - use the request path for name of trace

### What should we add or change to make your life better?

When using Yarp and OpenTelemetry with the Aspire dashboard, all requests show in the dashboard with the route match path as the display name. This means that you have to drill into each one to find the request you are looking for. It would be better if they showed the original request path.

Example


### Why is this important to you?

A change will enable a more useful experience when viewing telemetry.