chore: update base-reth repo url to base/base #762

Job	Run time
geth (linux/amd64, ubuntu-24.04)	3m 45s
reth (linux/amd64, ubuntu-24.04, jemalloc,asm-keccak,optimism)	20m 16s
reth (linux/arm64, ubuntu-24.04-arm, jemalloc,optimism)	20m 0s
geth (linux/arm64, ubuntu-24.04-arm)	3m 31s
nethermind (linux/amd64, ubuntu-24.04)	2m 56s
nethermind (linux/arm64, ubuntu-24.04-arm)	2m 49s
	53m 17s

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