Migrate to cosmos/gogoproto

[colin-axner]

Summary

Migrate from gogo/protobuf to cosmos/gogoproto, ref issue and ref pr

Problem Definition

We are still using the go mod replace directive to unmaintained code

Proposal

Switch from the regen fork to the cosmos fork. I'm unsure how involved this work will be outside of updating imports

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[crodriguezvega]

I think Simon is actually working on this as part of the upgrade to SDK 0.47. I will check with him.

[colin-axner]

Lets bring it out as a separate pr, it doesn't need to wait for v0.47 correct?

[julienrbrt]

Lets bring it out as a separate pr, it doesn't need to wait for v0.47 correct?

Unfortunately, it does. IBC depends on SDK 0.46, which still uses gogo/protobuf, so the proto.Message must be using gogo/protobuf.