KafkaPropertiesExtractor not extracting topic from kwargs

[noamfisher]

When using confluent_kafka producer with opentelemetry-instrumentation-confluent-kafka,
Using the confluent_kafka.Producer.produce with topic in kwargs will result in opentelemetry failing to extract the topic.

Steps to reproduce

from opentelemetry.instrumentation.confluent_kafka import ConfluentKafkaInstrumentor
ConfluentKafkaInstrumentor().instrument()

from confluent_kafka import Producer
producer = Producer(...)
producer.produce(topic="my.topic", value=b'data')

What is the expected behavior?
OTEL exports data about a produced message to topic my.topic

What is the actual behavior?
OTEL fails to export - the topic is failed to be extracted in ConfluentKafkaInstrumentor.wrap_produce.

Using the following code will work, passing the topic as arg instead of kwarg

producer.produce("my.topic", value=b'data')

Additional context
I can see the bug clearly. In the beginning of ConfluentKafkaInstrumentor.wrap_produce,
The topic is extracted using this code:

        topic = kwargs.get("topic")
        if not topic:
            topic = args[0]

Later in the method, the topic is extracted again, using

topic = KafkaPropertiesExtractor.extract_produce_topic(args)

This however is looking at args only and not covering cases of the topic being in kwargs.
I suggest moving the code above that looks at both args and kwargs into KafkaPropertiesExtractor.extract_produce_topic