Add Support for `traceresponse` Header in OpenTelemetry Tracing

*Title*: *Add Support for `traceresponse` Header in OpenTelemetry Tracing*

*Description*:

I propose adding `traceresponse` headers, as defined by the [Trace Response Header Specification](https://w3c.github.io/trace-context/#traceresponse-header), when OpenTelemetry tracing is enabled.

I didn't find any references to this header in the documentation: [Tracing](https://www.envoyproxy.io/docs/envoy/latest/intro/arch_overview/observability/tracing) and [OpenTelemetry tracer (proto)](https://www.envoyproxy.io/docs/envoy/latest/api-v3/config/trace/v3/opentelemetry.proto.html).

I'm interested to know if there is an existing mechanism that automatically adds this header, or if there is any ongoing development for this feature. If not, I would like to suggest its implementation.

The benefit of this feature would be to pass the trace information to the calling client, even if the client did not originally set up the trace, allowing the client to use the trace ID for troubleshooting purposes.