[stable2503] Backport #7075#7681
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# Description Adds support for the upcoming Ethereum Electra upgrade, while maintaining backwards compatibility for the current Deneb fork. ## Integration Relayers should be updated to send updated Electra consensus data structures. ## Review Notes The [Ethereum Electra hard-fork consensus](https://github.com/ethereum/consensus-specs/blob/dev/specs/electra/light-client/sync-protocol.md) changes affecting the Ethereum light client are mainly isolated to the [Generalized Indexes](https://github.com/protolambda/eth2.0-ssz/blob/master/specs/navigation/generalized_indices.md) of data structures changing. Before Electra, these values were hardcoded in config. For Electra, these values change and needed to the updated. Methods were added to return the correct g-index for the current fork version. Data structures used by the Ethereum client did not change in this hard-fork. The BeaconState container has been updated with additional changes, but because the on-chain code does not reference the BeaconState directly (only indirectly through merkle proofs), it is not a concern. Off-chain relayers use the BeaconState to generate proofs, and so the relayer code has been updated accordingly. ### Companion PR for off-chain relayers Snowfork/snowbridge#1283 --------- Co-authored-by: claravanstaden <Cats 4 life!> Co-authored-by: Ron <yrong1997@gmail.com> Co-authored-by: Vincent Geddes <vincent@snowfork.com> Co-authored-by: Alistair Singh <alistair.singh7@gmail.com> Co-authored-by: Vincent Geddes <117534+vgeddes@users.noreply.github.com> (cherry picked from commit dd7562a)
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acatangiu
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Backport #7075 into
stable2503from claravanstaden.See the documentation on how to use this bot.