Replace all occurrences of os=Linux #151

Job	Run time
build (linux/amd64, ubuntu-24.04, jammy, gcc, 12)	1m 59s
build (linux/amd64, ubuntu-24.04, noble, clang, 17)	2m 9s
build (linux/amd64, ubuntu-24.04, noble, clang, 18)	1m 42s
build (linux/amd64, ubuntu-24.04, noble, gcc, 13)	2m 2s
build (linux/arm64, ubuntu-24.04-arm, noble, clang, 16)	2m 51s
build (linux/amd64, ubuntu-24.04, noble, clang, 19)	2m 3s
build (linux/amd64, ubuntu-24.04, noble, gcc, 14)	1m 38s
build (linux/arm64, ubuntu-24.04-arm, noble, gcc, 14)	2m 53s
build (linux/arm64, ubuntu-24.04-arm, noble, clang, 18)	3m 12s
build (linux/amd64, ubuntu-24.04, noble, clang, 16)	2m 16s
build (linux/arm64, ubuntu-24.04-arm, noble, clang, 17)	2m 42s
build (linux/arm64, ubuntu-24.04-arm, jammy, gcc, 12)	2m 41s
build (linux/arm64, ubuntu-24.04-arm, noble, clang, 19)	2m 17s
build (linux/arm64, ubuntu-24.04-arm, noble, gcc, 13)	2m 53s
merge	-1s
	33m 17s

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