Describe the bug:

After upgrading the agent to 6.10.0, we immediately started seeing AttributeError failues in the ElasticAPM code when calling through to our kafka-python code paths (we've had to rollback to 6.9 because of this).

To Reproduce

Try to send a message using the KafkaProducer class in kafka-python.

Traceback:

AttributeError: 'NoneType' object has no attribute 'id'
[...]
  File "elasticapm/instrumentation/packages/kafka.py", line 94, in call_if_sampling
    return self.call(module, method, wrapped, instance, args, kwargs)
  File "elasticapm/instrumentation/packages/kafka.py", line 106, in call
    return self._trace_send(instance, wrapped, destination_info=destination_info, *args, **kwargs)
  File "elasticapm/instrumentation/packages/kafka.py", line 71, in _trace_send
    tp = transaction.trace_parent.copy_from(span_id=span.id)

I have had to remove proprietary code from the stack trace. However, the two snipped lines of code before it hits the elasticapm code paths is basically just doing:

from kafka import KafkaProducer
producer = KafkaProducer(**kafka_config)  # where kafka_config is a dict of config options.
producer.send(topic, message).get()

Environment (please complete the following information)

• OS: Linux
• Python version: 3.9.6-slim-bullseye (Docker container)
• Framework and version [e.g. Django 2.1]: Django 3.2.13, kafka-python 2.0.2
• Agent version: 6.10.0