chore(main): release core 21.0.0

[zksync-era-bot]

🤖 I have created a release beep boop

21.0.0 (2024-03-01)

⚠ BREAKING CHANGES

• prover: Add EIP4844 support for provers subsystem (#1200)
• Set 21 as latest protocol version (#1262)

Features

• A way to disable slow query logging for some queries (#1297) (13b82a0)
• aggregator: support two operator addresses in sender and aggregator (#1201) (7be56e5)
• change EN main node fetcher concurrency factor (#1317) (d4235b5)
• commitment-generator: Commitment for 1.4.2 (#1234) (9b773eb)
• config: add pubdata sending method to config (#1261) (cebf55a)
• config: Added blobs to commit batches and made da source part of config (#1243) (e01d1b6)
• config: update eth_sender to use blobs (#1295) (e81f080)
• core: Adds support for 4844 transaction signing and rlp encoding (#1254) (10e3a3e)
• dal: zksync_types::Transaction to use protobuf for wire encoding (BFT-407) (#1047) (ee94bee)
• eth_sender: set blob gas fee when blobs DA is used (#1285) (57c5526)
• gas-adjuster: gas adjuster for EIP4844 (#1255) (1da97ed)
• Metrics for block tip (#1144) (85d4b12)
• node_framework: Add Web3 API layers (#1258) (105f4cc)
• node_framework: Support Proof Data Handler in the framework (#1233) (2191218)
• prover: Add EIP4844 support for provers subsystem (#1200) (6953e89)
• Remove methods to sign an arbitraty message (#1294) (8904123)
• Set 21 as latest protocol version (#1262) (30579ef)
• support loading verifier and protocol version from db (#1293) (533f013)

Bug Fixes

• Add EIP4844 to fri_prover_group_config (#1309) (edf9397)
• api: Use better gas per pubdata in API (pure server changes) (#1311) (54f8d8c)
• docker: change default password for postgres (#1250) (f6bff74)
• en: fail fast if we don't request correct number of txs from man node (#1269) (1bcbf17)
• Fix scheduler enqueuer bug (#1322) (95deb92)
• snapshots_creator: Fix snapshot generation query (#1289) (e279456)
• vm: fix match clause in get_max_gas_per_pubdata_byte (#1292) (eaf5a50)

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[zksync-era-bot]

🤖 Release is at https://github.com/matter-labs/zksync-era/releases/tag/core-v21.0.0 🌻