feat: add separate flag for metrics #947

Job	Run time
fee-middleware	2m 16s
fee-grant	8m 11s
events	4m 2s
legacy	3m 59s
misbehaviour	1m 57s
multiple-paths	2m 21s
prepare-scenario-matrix	2m 39s
scenarios (TestScenarioClientThresholdUpdate)	4m 31s
scenarios (TestScenarioClientTrustingPeriodUpdate)	4m 26s
scenarios (TestScenarioICAChannelClose)	2m 23s
scenarios (TestScenarioInterchainAccounts)	2m 22s
scenarios (TestScenarioPathFilterAllow)	1m 51s
scenarios (TestScenarioPathFilterDeny)	1m 43s
scenarios (TestScenarioTendermint37Boundary)	3m 37s
scenarios (TestScenarioStrideICAandICQ)	38s
	46m 56s

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