chore: update constants for alpha.12

[ensi321]

• PAYLOAD_DUE_BPS 7500 -> 5000 (consensus-specs Gossip block signatures verification on main thread #5414)
• MIN_BUILDER_WITHDRAWABILITY_DELAY mainnet 8192 -> 64 (consensus-specs feat: skip serializing gossip block when persisting to db #5426)
• MAX_BUILDER_DEPOSIT_REQUESTS_PER_PAYLOAD 256 -> 64 (consensus-specs Performance issue when there are too many mesh peers #5420)
• EnvelopesByRange cap uses MAX_REQUEST_PAYLOADS (consensus-specs Metrics review Apr 2023 #5383)

[gemini-code-assist]

Code Review

This pull request updates several consensus and network parameters to align with the GLOAS specification. Key changes include updating the bounding cap in the execution payload envelopes by range request handler to use MAX_REQUEST_PAYLOADS instead of MAX_REQUEST_BLOCKS_DENEB. Additionally, it reduces MIN_BUILDER_WITHDRAWABILITY_DELAY to 64 epochs, decreases PAYLOAD_DUE_BPS to 5000, and lowers MAX_BUILDER_DEPOSIT_REQUESTS_PER_PAYLOAD to 64 across mainnet and minimal configurations. There are no review comments, and I have no additional feedback to provide.

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[chatgpt-codex-connector]

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[chatgpt-codex-connector]

Bump pinned spec versions with alpha.12 constants

These alpha.12 values are now compared against the remote spec version pinned in packages/config/test/spec-tests-version.json and packages/params/test/spec-tests-version.json, which still say v1.7.0-alpha.11; the e2e sync tests (packages/config/test/e2e/ensure-config-is-synced.test.ts and packages/params/test/e2e/ensure-config-is-synced.test.ts) fetch that pinned tag and assert equality, so CI will report mismatches for the updated Gloas config/preset values until the spec-test version pins and specrefs are advanced with the constant changes.

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