add note in v9 migration docs

Author: crodriguezvega

docs/docs/05-migrations/13-v8-to-v9.md

@@ -34,6 +34,8 @@ The functions `GetPortID()`, `GetChannelID()` of the `CounterpartyChannel` type
 The functions `GetClientID()`, `GetState()`, `GetCounterparty()`, `GetVersions()`, and `GetDelayPeriod` of the `Connection` type have been removed. 
 The functions `GetClientID()`, `GetConnectionID()`, and `GetPrefix()` of the `CounterpartyConnection` type have been removed. 
 
+The utility function `QueryLatestConsensusState` of `04-channel` CLI has been removed.
+
 ### API deprecation notice
 
 The testing package functions `coordinator.Setup`, `coordinator.SetupClients`, `coordinator.SetupConnections`, `coordinator.CreateConnections`, and `coordinator.CreateChannels` have been deprecated and will be removed in v10.