Interchaintest test suite should test the upgrade/update clients flow for unfreezing IBC light clients.

[agouin]

Testing the upgrade/update clients flow for unfreezing IBC light clients.

For example in #8 we required a hack in the relayer to update clients after the juno-1 phoenix genesis to use a pre-fork rpc to query heights before the new genesis height to successfully update the clients to a new height.

[Reecepbcups]

@AntiTyping Didn't you write this recently? If so can you link to it here so I can make a reference and put into the docs?

[AntiTyping]

I can give it a shot. thx