add TODO about wrapper removal condition

Author: tbruyelle

ignite/pkg/cosmosclient/rpc.go

@@ -15,6 +15,7 @@ import (
 // Useful because the original implementation may return JSON errors when the
 // requested node is busy, which is confusing for the user. With rpcWrapper,
 // the error is prefixed with 'error while requesting node xxx: JSON error'.
+// TODO(tb): we may remove this wrapper once https://github.com/tendermint/tendermint/issues/9312 is fixed.
 type rpcWrapper struct {
 	rpcclient.Client
 	nodeAddress string