Fix typo: MsgChannelCloseConfim to MsgChannelCloseConfirm #961

Job	Run time
fee-grant	7m 43s
fee-middleware	2m 24s
legacy	3m 49s
events	3m 23s
misbehaviour	2m 10s
multiple-paths	2m 23s
prepare-scenario-matrix	2m 44s
scenarios (TestScenarioClientThresholdUpdate)	4m 43s
scenarios (TestScenarioClientTrustingPeriodUpdate)	4m 59s
scenarios (TestScenarioICAChannelClose)	4m 23s
scenarios (TestScenarioInterchainAccounts)	3m 36s
scenarios (TestScenarioPathFilterAllow)	1m 49s
scenarios (TestScenarioPathFilterDeny)	2m 46s
scenarios (TestScenarioTendermint37Boundary)	3m 1s
scenarios (TestScenarioStrideICAandICQ)	29s
	50m 22s

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