bump fabric-chaincode-go to v2.3.0 #3980

Job	Run time
Basic Checks	3m 42s
Unit Tests	10m 54s
Integration Tests (raft)	13m 52s
Integration Tests (pvtdata)	13m 41s
Integration Tests (pvtdatapurge e2e)	20m 51s
Integration Tests (ledger)	14m 49s
Integration Tests (lifecycle)	9m 3s
Integration Tests (smartbft)	22m 22s
Integration Tests (discovery gossip devmode pluggable)	10m 59s
Integration Tests (gateway idemix pkcs11 configtx configtxlator)	18m 45s
Integration Tests (sbe nwo msp)	7m 28s
	2h 26m 26s

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