improve Rpc response logging #37

Job	Run time
dockerfile-ubuntu	18m 4s
doppelganger-protection-success-test	11m 55s
run-local-testnet	19m 38s
doppelganger-protection-failure-test	6m 39s
genesis-sync-test-${{ matrix.fork }}-${{ matrix.offline_secs }}s	0s
checkpoint-sync-test-${{ matrix.network }}	0s
local-testnet-success	6s
	56m 22s

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