v1.7.0-alpha.9

Phase0 Use custom ruff which checks markdown code blocks ( #5261 ) Add a script which enforces consistent note prefixes ( #5279 ) Use consistent gossip validation param order/types ( #5295 ) Redesign fork choice abstractions ( #5249 ) Enable more ruff lint checks ( #5268 ) Precompute head for update_proposer_boost_root ( #5300 ) Ensure confirmed chain includes greatest unrealized checkpoint (…