Update YAML indentation to 2 spaces in sampleconfig for consistency #3789

Job	Run time
Basic Checks	2m 45s
Basic Checks	2m 45s
Basic Checks	2m 45s
Unit Tests	8m 42s
Unit Tests	8m 24s
Unit Tests	8m 24s
Integration Tests (raft)	12m 45s
Integration Tests (raft)	12m 45s
Integration Tests (raft)	12m 45s
Integration Tests (pvtdata)	11m 59s
Integration Tests (pvtdata)	11m 59s
Integration Tests (pvtdata)	12m 37s
Integration Tests (pvtdatapurge e2e)	11m 23s
Integration Tests (pvtdatapurge e2e)	11m 23s
Integration Tests (pvtdatapurge e2e)	11m 23s
Integration Tests (ledger)	13m 16s
Integration Tests (ledger)	13m 16s
Integration Tests (ledger)	14m 5s
Integration Tests (lifecycle)	6m 36s
Integration Tests (lifecycle)	6m 36s
Integration Tests (lifecycle)	6m 36s
Integration Tests (smartbft)	11m 50s
Integration Tests (smartbft)	11m 50s
Integration Tests (smartbft)	20m 47s
Integration Tests (discovery gossip devmode pluggable)	7m 6s
Integration Tests (discovery gossip devmode pluggable)	7m 6s
Integration Tests (discovery gossip devmode pluggable)	7m 6s
Integration Tests (gateway idemix pkcs11 configtx configtxlator)	12m 14s
Integration Tests (gateway idemix pkcs11 configtx configtxlator)	12m 14s
Integration Tests (gateway idemix pkcs11 configtx configtxlator)	20m 20s
Integration Tests (sbe nwo msp)	8m 3s
Integration Tests (sbe nwo msp)	8m 3s
Integration Tests (sbe nwo msp)	8m 3s
	5h 37m 51s

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