[QUESTION] Support for Apache Kafka 4.0

Hi,

Apache Kafka 4.0 is removing a number of very old protocol api versions via [KIP-896](https://cwiki.apache.org/confluence/display/KAFKA/KIP-896%3A+Remove+old+client+protocol+API+versions+in+Kafka+4.0).

When I was looking at the code, I noticed that we seem to use V0 or V1 below:

https://github.com/ulrikjohansson/aiokafka/blob/master/aiokafka/client.py#L179

Am I reading that right? If so, this will not work with Apache Kafka 4.0 and would have to change to use at least
Metadata request v4 (but ideally it would just use the newest version supported by the broker).