Zipkin exporter doesn't retain the recorded error of a otlp span

[atye]

Describe the bug
The zipkin exporter does not retain the recorded error of a span from the otlp receiver. This could be an issue with https://github.com/open-telemetry/opentelemetry-go but I'm trying here first.

Steps to reproduce
Run Zipkin instance.
Run Collector configured to receive otlp via http or grpc and export to Zipkin instance.
Create a OTLP client and create a span with a recorded error (see config section for example, included Jaeger for comparison)

What did you expect to see?
Zipkin instance shows traces that contain spans with recorded errors and are marked red.

What did you see instead?
Zipkin instance shows traces that contain spans without recorded errors that are not marked red.

What version did you use?
Version: 0.45.0

What config did you use?

receivers:
  otlp:
    protocols:
      grpc:
        endpoint: 0.0.0.0:7000
      http:
        endpoint: 0.0.0.0:7001

exporters:
  jaeger:
    endpoint: "jaeger:14250"
    tls:
      insecure: true
  zipkin:
    endpoint: "http://zipkin:9411/api/v2/spans"

processors:
  batch:

service:
  pipelines:
    traces:
      receivers: [otlp]
      processors: [batch]
      exporters: [zipkin,jaeger]

version: "3.7"
services:
  zipkin:
    image: openzipkin/zipkin:2.23.16
    ports:
      - "9411:9411"
  jaeger:
    image: jaegertracing/all-in-one:1.31
    ports:
      - "14268:14268"
      - "16686:16686"
      - "14250:14250"
      - "6831:6831/udp"
  otel-collector:
    image: otel/opentelemetry-collector-contrib:latest
    command: ["--config=/etc/otel-collector-config.yaml"]
    volumes:
      - ./otel-collector-config.yaml:/etc/otel-collector-config.yaml
    ports:
    - "9211:9211"
    - "7000:7000"
    - "7001:7001"
    - "7002:7002"
    depends_on:
      - zipkin
      - jaeger 

package main

import (
	"context"
	"errors"
	"log"

	"go.opentelemetry.io/otel"
	"go.opentelemetry.io/otel/codes"
	"go.opentelemetry.io/otel/exporters/otlp/otlptrace"
	"go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp"
	sdktrace "go.opentelemetry.io/otel/sdk/trace"
)

func main() {
	o, err := otlptrace.New(context.Background(), otlptracehttp.NewClient(otlptracehttp.WithEndpoint("localhost:7001"), otlptracehttp.WithInsecure()))
	if err != nil {
		log.Fatal(err)
	}

	tracerOptions := []sdktrace.TracerProviderOption{
		sdktrace.WithBatcher(o),
		sdktrace.WithSampler(sdktrace.TraceIDRatioBased(1)),
	}

	otel.SetTracerProvider(sdktrace.NewTracerProvider(tracerOptions...))

	t := otel.Tracer("test")

	_, span := t.Start(context.Background(), "test")

	err = errors.New("error")
	span.RecordError(err)
	span.SetStatus(codes.Error, err.Error())

	span.End()

	select {}
}

Environment
OS: CentOS 7.6

Additional context
Add any other context about the problem here.

[jpkrohling]

cc @pmm-sumo

[pmm-sumo]

This should be closed through #8253. If anyone sees the issue happening again, please reopen