Reth v2.3.0 Boosts Throughput By 8.1 Percent

Reth v2.3.0 boosts throughput 8.1%, from ~1.4 to ~1.5 Ggas/s. Adds parallel execution, BAL prewarming, faster trie/proof paths, cheaper tx-pool insertion. Fixes eth_simulate, RLPx buffering, BAL validation. Expands Block Access List (BAL) support, SSZ Engine API proxy, eth_pendingTransactions, eth_baseFee. SDK users review breaking changes; node operators need no migration.