aimericsr

In the examples dir, getting the current Otel [trace_id](https://github.com/davidB/tracing-opentelemetry-instrumentation-sdk/blob/3acd2bc77b295e4bbe6f408dc0e5d747f6c83637/examples/axum-otlp/src/main.rs#L52) is working even if we are not in the root span created by the Tower layer, we are one level deeper...