bump gnark-crypto to v0.19.2 (#5326) #4351

Job	Run time
Basic Checks	3m 49s
Unit Tests	8m 10s
Integration Tests (raft)	14m 20s
Integration Tests (pvtdatapurge e2e)	21m 4s
Integration Tests (lifecycle)	6m 3s
Integration Tests (smartbft)	20m 11s
Integration Tests (discovery gossip devmode pluggable)	8m 9s
Integration Tests (ledger)	13m 52s
Integration Tests (pvtdata)	11m 49s
Integration Tests (gateway idemix pkcs11 configtx configtxlator)	17m 36s
Integration Tests (sbe nwo msp)	7m 41s
	2h 12m 44s

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