fix(stackable-telemetry/webhook): Correctly extract connect and host info in Axum trace layer

[Techassi]

This correctly extract the server.address, server.port, client.address and client.port fields in the OpenTelemetry compatible traces.

This fix requires changes in the stackable-webhook crate to instruct various parts of the connection handling chain to extract the required data, which can be consumed by the stackable-telemetry crate.

Screenshot