dev/ci: leverage Buildkite OpenTelemetry to export build traces to Honeycomb

Created by: bobheadxi

This can eventually replace our custom build tracing: https://buildkite.com/docs/agent/v3/tracing#using-opentelemetry-tracing

We can probably avoid deploying a collector here, we can set up agents to export directly to Honeycomb since it accepts OTLP GRPC