Add nix installation #247

Job	Run time
build (linux/amd64, ubuntu-24.04, noble, gcc, 13)	4m 1s
build (linux/amd64, ubuntu-24.04, noble, clang, 18)	3m 50s
build (linux/arm64, ubuntu-24.04-arm, noble, clang, 19)	4m 3s
build (linux/arm64, ubuntu-24.04-arm, noble, clang, 16)	3m 56s
build (linux/arm64, ubuntu-24.04-arm, noble, gcc, 13)	3m 56s
build (linux/amd64, ubuntu-24.04, noble, gcc, 14)	1s
build (linux/arm64, ubuntu-24.04-arm, noble, clang, 18)	3m 54s
build (linux/amd64, ubuntu-24.04, noble, clang, 20)	1s
build (linux/arm64, ubuntu-24.04-arm, noble, gcc, 14)	3m 54s
build (linux/arm64, ubuntu-24.04-arm, noble, clang, 20)	3m 52s
build (linux/amd64, ubuntu-24.04, noble, clang, 16)	1s
build (linux/amd64, ubuntu-24.04, jammy, gcc, 12)	1s
build (linux/amd64, ubuntu-24.04, noble, clang, 17)	1s
build (linux/arm64, ubuntu-24.04-arm, noble, clang, 17)	3m 54s
build (linux/arm64, ubuntu-24.04-arm, jammy, gcc, 12)	3m 54s
build (linux/amd64, ubuntu-24.04, noble, clang, 19)	1s
merge	1s
	39m 21s

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