fix: downgrade ibc and retract v1.8.0 (#3425)

## Overview

downgrades ibc and retracts v1.8.0

go.mod

@@ -32,7 +32,7 @@ require (
 	github.com/cosmos/cosmos-proto v1.0.0-alpha8
 	github.com/cosmos/cosmos-sdk v0.46.16
 	github.com/cosmos/gogoproto v1.4.11
-	github.com/cosmos/ibc-go/v6 v6.3.0
+	github.com/cosmos/ibc-go/v6 v6.2.1
 	github.com/rs/zerolog v1.31.0
 	github.com/spf13/pflag v1.0.5
 	github.com/tendermint/tendermint v0.34.29
@@ -229,3 +229,7 @@ replace (
 	github.com/syndtr/goleveldb => github.com/syndtr/goleveldb v1.0.1-0.20210819022825-2ae1ddf74ef7
 	github.com/tendermint/tendermint => github.com/celestiaorg/celestia-core v1.35.0-tm-v0.34.29
 )
+
+// v1.8.0 was retracted due to a dependency bump in ibc resulting in a consensus
+// breaking change.
+retract v1.8.0

go.sum

@@ -416,8 +416,8 @@ github.com/cosmos/gorocksdb v1.2.0 h1:d0l3jJG8M4hBouIZq0mDUHZ+zjOx044J3nGRskwTb4
 github.com/cosmos/gorocksdb v1.2.0/go.mod h1:aaKvKItm514hKfNJpUJXnnOWeBnk2GL4+Qw9NHizILw=
 github.com/cosmos/iavl v0.19.6 h1:XY78yEeNPrEYyNCKlqr9chrwoeSDJ0bV2VjocTk//OU=
 github.com/cosmos/iavl v0.19.6/go.mod h1:X9PKD3J0iFxdmgNLa7b2LYWdsGd90ToV5cAONApkEPw=
-github.com/cosmos/ibc-go/v6 v6.3.0 h1:2EkkqDEd9hTQvzB/BsPhYZsu7T/dzAVA8+VD2UuJLSQ=
-github.com/cosmos/ibc-go/v6 v6.3.0/go.mod h1:Dm14j9s094bGyCEE8W4fD+2t8IneHv+cz+80Mvwjr1w=
+github.com/cosmos/ibc-go/v6 v6.2.1 h1:NiaDXTRhKwf3n9kELD4VRIe5zby1yk1jBvaz9tXTQ6k=
+github.com/cosmos/ibc-go/v6 v6.2.1/go.mod h1:XLsARy4Y7+GtAqzMcxNdlQf6lx+ti1e8KcMGv5NIK7A=
 github.com/cosmos/ledger-cosmos-go v0.12.4 h1:drvWt+GJP7Aiw550yeb3ON/zsrgW0jgh5saFCr7pDnw=
 github.com/cosmos/ledger-cosmos-go v0.12.4/go.mod h1:fjfVWRf++Xkygt9wzCsjEBdjcf7wiiY35fv3ctT+k4M=
 github.com/cpuguy83/go-md2man v1.0.10 h1:BSKMNlYxDvnunlTymqtgONjNnaRV1sTpcovwwjF22jk=