bump github.com/syndtr/goleveldb to 126854af5e6d #3730

Job	Run time
Basic Checks	1m 6s
Basic Checks	1m 6s
Unit Tests	22m 44s
Unit Tests	24m 21s
Integration Tests (raft)	12m 20s
Integration Tests (raft)	12m 20s
Integration Tests (pvtdata)	11m 26s
Integration Tests (pvtdata)	11m 26s
Integration Tests (pvtdatapurge e2e)	11m 54s
Integration Tests (pvtdatapurge e2e)	11m 54s
Integration Tests (ledger)	13m 30s
Integration Tests (ledger)	13m 30s
Integration Tests (lifecycle)	5m 59s
Integration Tests (lifecycle)	5m 59s
Integration Tests (smartbft)	20m 3s
Integration Tests (smartbft)	20m 3s
Integration Tests (discovery gossip devmode pluggable)	6m 52s
Integration Tests (discovery gossip devmode pluggable)	6m 52s
Integration Tests (gateway idemix pkcs11 configtx configtxlator)	19m 19s
Integration Tests (gateway idemix pkcs11 configtx configtxlator)	19m 19s
Integration Tests (sbe nwo msp)	7m 33s
Integration Tests (sbe nwo msp)	7m 33s
	4h 27m 9s

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