bump gnark-crypto to v0.19.2 #821

Job	Run time
Basic Checks	3m 29s
Unit Tests	9m 52s
Integration Tests (raft)	13m 37s
Integration Tests (pvtdata)	11m 22s
Integration Tests (discovery gossip devmode pluggable)	8m 54s
Integration Tests (smartbft)	22m 27s
Integration Tests (pvtdatapurge e2e)	20m 30s
Integration Tests (sbe nwo msp)	7m 45s
Integration Tests (gateway idemix pkcs11 configtx configtxlator)	18m 55s
Integration Tests (lifecycle)	6m 39s
Integration Tests (ledger)	13m 42s
	2h 17m 12s

Provide feedback