Fix gam-install.sh #1741 #3916

Job	Run time
build (ubuntu-22.04, 1, build, x86_64, linux-x86_64)	22m 8s
build (ubuntu-24.04, 2, build, x86_64, linux-x86_64)	19m 19s
build (ubuntu-24.04-arm, 3, build, aarch64, linux-aarch64)	18m 20s
build (ubuntu-22.04-arm, 4, build, aarch64, linux-aarch64)	20m 54s
build (ubuntu-22.04, 5, build, x86_64, linux-x86_64, yes)	18m 18s
build (ubuntu-22.04-arm, 6, build, aarch64, linux-aarch64, yes)	16m 12s
build (macos-13, 7, build, x86_64, darwin64-x86_64)	25m 22s
build (macos-14, 8, build, aarch64, darwin64-arm64)	23m 18s
build (macos-15, 9, build, aarch64, darwin64-arm64)	23m 55s
build (windows-2022, 10, build, Win64, VC-WIN64A)	20m 21s
build (ubuntu-24.04, test, 3.10, 11, x86_64)	14m 40s
build (ubuntu-24.04, test, 3.11, 12, x86_64)	16m 27s
build (ubuntu-24.04, test, 3.12, 13, x86_64)	15m 51s
merge	11s
publish	1m 38s
	4h 16m 54s

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