Replace all occurrences of os=Linux #136

Job	Run time
build (linux/amd64, ubuntu-24.04, bookworm, gcc, 12)	1m 50s
build (linux/amd64, ubuntu-24.04, bookworm, clang, 17)	2m 17s
build (linux/amd64, ubuntu-24.04, bookworm, clang, 20)	1m 53s
build (linux/arm64, ubuntu-24.04-arm, bookworm, clang, 16)	2m 24s
build (linux/amd64, ubuntu-24.04, bookworm, clang, 18)	1m 48s
build (linux/arm64, ubuntu-24.04-arm, bookworm, clang, 17)	3m 11s
build (linux/arm64, ubuntu-24.04-arm, bookworm, clang, 18)	2m 27s
build (linux/amd64, ubuntu-24.04, bookworm, gcc, 13)	1m 48s
build (linux/amd64, ubuntu-24.04, bookworm, clang, 19)	1m 57s
build (linux/arm64, ubuntu-24.04-arm, bookworm, clang, 19)	2m 22s
build (linux/arm64, ubuntu-24.04-arm, bookworm, clang, 20)	2m 33s
build (linux/arm64, ubuntu-24.04-arm, bookworm, gcc, 12)	2m 10s
build (linux/arm64, ubuntu-24.04-arm, bookworm, gcc, 13)	2m 23s
build (linux/amd64, ubuntu-24.04, bookworm, gcc, 14)	1m 58s
build (linux/arm64, ubuntu-24.04-arm, bookworm, gcc, 14)	2m 15s
build (linux/amd64, ubuntu-24.04, bookworm, clang, 16)	2m 25s
merge	0s
	35m 41s

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