Bump ics23 to v0.10 to get prehash_key_before_comparison

[kevinji]

Feature Summary

ics23 v0.10 includes cosmos/ics23#136 which is needed for certain Merkle tree implementations. We would like to pick this up, but I think this is blocked on ibc-proto-rs getting the prehash_key_before_comparison field in ibc_proto::ics23::ProofSpec.

Fixing cosmos/ibc-proto-rs#10 would make it easier to pick up upstream ics23 changes.

Proposal

Bump ics23 to v0.10 after making the needed changes in ibc-proto-rs.

[romac]

I am working on cosmos/ibc-proto-rs#10, will keep you posted.

[romac]

I opened a draft PR in ibc-proto-rs: cosmos/ibc-proto-rs#92

Currently blocked on getting this in ics23: cosmos/ics23#145

[romac]

It's out: https://github.com/cosmos/ibc-proto-rs/releases/tag/v0.31.0-alpha.1

[plafer]

We can't quite upgrade yet because it depends on tendermint-proto v0.31.0, but tower-abci only supports v0.30.0 at the moment (which most of our users use)