Default to GHCR instead of DockerHub for install #3981

Job	Run time
Basic Checks	2m 10s
Unit Tests	9m 54s
Integration Tests (raft)	14m 16s
Integration Tests (pvtdata)	14m 31s
Integration Tests (pvtdatapurge e2e)	22m 11s
Integration Tests (ledger)	15m 28s
Integration Tests (lifecycle)	8m 8s
Integration Tests (smartbft)	21m 48s
Integration Tests (discovery gossip devmode pluggable)	9m 13s
Integration Tests (gateway idemix pkcs11 configtx configtxlator)	19m 59s
Integration Tests (sbe nwo msp)	10m 22s
	2h 28m 0s

Provide feedback