Support validator addresses in autocli

[julienrbrt]

AutoCLI fails when setting a validator address. We need to use a different address codec for field annotated with cosmos.ValidatorAddressString (possibly ConsensusAddressString too??).

6:29PM ERR failure when running app err="invalid argument \"cosmosvaloper1hzktuc7un3uvrem2fdh2kw4vwzkxum6pv83h5c\" for \"--0\" flag: invalid bech32 account address: hrp does not match bech32 prefix: expected 'cosmos' got 'cosmosvaloper': internal logic error [cosmos/cosmos-sdk@v0.51.0/x/auth/codec/bech32_codec.go:37]" when trying to get a validator.

Originally posted by @julienrbrt in #16641 (comment)