* First take at updating everything to v5
* Patch gRPC gateway to use prysm v5
Fix patch
* Update go ssz
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Co-authored-by: Preston Van Loon <pvanloon@offchainlabs.com>
* Add test helpers to produce commitments and proofs
* go mod tidy
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Co-authored-by: prylabs-bulldozer[bot] <58059840+prylabs-bulldozer[bot]@users.noreply.github.com>