Support for KIP-429: Cooperative rebalancing

It would be great to use this feature: https://cwiki.apache.org/confluence/display/KAFKA/KIP-429%3A+Kafka+Consumer+Incremental+Rebalance+Protocol

I believe it is supported in other clients: https://pkg.go.dev/github.com/Shopify/sarama#StickyBalanceStrategyName https://pkg.go.dev/github.com/twmb/franz-go/pkg/kgo#CooperativeStickyBalancer

But I couldn't find it in this one.