Revert github.com/prometheus/client_golang to v1.11.1 #3760

Job	Run time
Basic Checks	1m 5s
Unit Tests	23m 42s
Integration Tests (raft)	15m 10s
Integration Tests (pvtdata)	13m 41s
Integration Tests (pvtdatapurge e2e)	12m 22s
Integration Tests (ledger)	17m 6s
Integration Tests (lifecycle)	6m 54s
Integration Tests (smartbft)	20m 29s
Integration Tests (discovery gossip devmode pluggable)	6m 25s
Integration Tests (gateway idemix pkcs11 configtx configtxlator)	18m 28s
Integration Tests (sbe nwo msp)	10m 34s
	2h 25m 56s

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