cog

5d38ae7d - Propagate trace context to webhook and upload requests

Propagate trace context to webhook and upload requests Based on the implementation in #1698 for sync cog. If the request to /predict contains headers `traceparent` and `tracestate` defined by w3c Trace Context[^1] then these headers are forwarded on to the webhook and upload calls. This allows observability systems to link requests passing through cog. [^1]: https://www.w3.org/TR/trace-context/ Signed-off-by: technillogue <technillogue@gmail.com>