KIP-390 — Support Compression Level

Accepted Kafka 3.8 ProducerBroker

Adds per-codec compression level configuration (`compression.gzip.level`, `compression.lz4.level`, `compression.zstd.level`) at the producer, broker, and topic levels. Kafka's fixed default compression level is a suboptimal trade-off for many workloads; some use cases prioritize smaller compressed size (higher level) while others prioritize CPU throughput (lower level), and the choice can yield up to 156% more messages/sec in benchmarks.

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