Pick the default gcc/g++ from distro #137

Job	Run time
build (linux/amd64, ubuntu-24.04, noble, clang, 16)	2m 20s
build (linux/amd64, ubuntu-24.04, noble, gcc, 14)	1m 32s
build (linux/arm64, ubuntu-24.04-arm, noble, gcc, 13)	2m 3s
build (linux/arm64, ubuntu-24.04-arm, jammy, gcc, 12)	2m 22s
build (linux/arm64, ubuntu-24.04-arm, noble, gcc, 14)	1m 59s
build (linux/amd64, ubuntu-24.04, noble, clang, 17)	1m 52s
build (linux/amd64, ubuntu-24.04, jammy, gcc, 12)	1m 32s
build (linux/amd64, ubuntu-24.04, noble, gcc, 13)	1m 35s
build (linux/amd64, ubuntu-24.04, noble, clang, 18)	1m 51s
build (linux/arm64, ubuntu-24.04-arm, noble, clang, 17)	2m 0s
build (linux/arm64, ubuntu-24.04-arm, noble, clang, 19)	2m 6s
build (linux/arm64, ubuntu-24.04-arm, noble, clang, 18)	1m 56s
build (linux/arm64, ubuntu-24.04-arm, noble, clang, 16)	2m 34s
build (linux/amd64, ubuntu-24.04, noble, clang, 19)	1m 43s
merge	0s
	27m 25s

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