fix: disable NuGet audit in nethermind Dockerfile (#1036) #380

Job	Run time
nethermind (linux/arm64, ubuntu-24.04-arm)	52s
geth (linux/amd64, ubuntu-24.04)	4m 24s
geth (linux/arm64, ubuntu-24.04-arm)	3m 28s
reth (linux/arm64, ubuntu-24.04-arm, jemalloc,optimism)	1m 1s
nethermind (linux/amd64, ubuntu-24.04)	39s
reth (linux/amd64, ubuntu-24.04, jemalloc,asm-keccak,optimism)	1m 22s
merge-nethermind	-1s
merge-reth	-1s
merge-geth	45s
	12m 29s

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