KIP-854 — Separate configuration for producer ID expiry

Accepted Kafka 3.4 ProducerTransactions

Introduces a separate `producer.id.expiration.ms` configuration distinct from `transactional.id.expiration.ms` so idempotent-only producers (without a `transactional.id`) have their producer IDs expired independently and on a shorter horizon. Previously both expiration windows were conflated, preventing fine-grained control over producer state cleanup for non-transactional producers.

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