Describe the bug

Hello!

There is no http.route attribute in traces when I use Ktor server framework.
Is it supported or not yet implemented?

Steps to reproduce

Execute any request to ktor, there won't be http.route attribute. http.target exists btw

What did you expect to see?

I expect to see both http.route and http.target. in trace

What did you see instead?

A clear and concise description of what you saw instead.

What version are you using?

Open Telemetry JavaAgent 1.28.0
Open Telemetry Ktor 2.0 1.28.0-alpha