Update README.md (#534) #216

Job	Run time
reth (linux/amd64, ubuntu-24.04, jemalloc,asm-keccak,optimism)	29m 46s
nethermind (linux/arm64, ubuntu-24.04-arm)	3m 20s
geth (linux/arm64, ubuntu-24.04-arm)	3m 5s
nethermind (linux/amd64, ubuntu-24.04)	3m 14s
geth (linux/amd64, ubuntu-24.04)	3m 49s
reth (linux/arm64, ubuntu-24.04-arm, jemalloc,optimism)	23m 54s
merge-nethermind	23s
merge-geth	33s
merge-reth	23s
	1h 8m 27s

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