Lodestar v1.46.0 Adds Gloas Fork, Builder Bids

Lodestar v1.46.0 adds Gloas fork support (EIP-8061, EIP-7688), proposer slashings from equivocations, and builder bid enhancements. Includes 25 bug fixes, including orphaned payload handling and optimistic head block production. Migrated to TypeScript 7.0 and removed Bun runtime support.