Support for Enrich when using WithMetrics

[zulander1]

Component

OpenTelemetry.Instrumentation.AspNetCore

Is your feature request related to a problem?

No response

What is the expected behavior?

When using AddAspNetCoreInstrumentation, there is no way to add Enrich using WithMetrics (as described here). It would be nice to have the possibility to update the activity so we can change the route according. My issue is that I am using version control and all the metrics are send out as "/api/v{version:apiVersion}" for the route name

 builder.Services.AddOpenTelemetry().WithMetrics(opts => opts

    .SetResourceBuilder(ResourceBuilder.CreateDefault().AddService("A"))
    .AddAspNetCoreInstrumentation()
    .AddRuntimeInstrumentation()
    .AddPrometheusExporter()
  );

Updating the activity would allow us to change the route name from GET /api/v{version:apiVersion}/ to GET /api/v1/
I am using NET 8 with minimal API

Which alternative solutions or features have you considered?

Update the route automatically as describe there here

Additional context

No response

[splitt3r]

This would also be great to add route information for CoreWCF services. I think for .NET 8 + this needs to be done in the official ASP.NET Core repo

This is also partly related to #1730