MacOS may not have core-utils installed so use sysctl instead to get … #633

Job	Run time
build-linux-clang-13-no_test_run	0s
build-linux-cmake-with-benchmark-no-thread-status	0s
build-linux-cmake-mingw	0s
build-linux-encrypted_env-no_compression	0s
build-linux-arm	0s
build-macos-java-static	0s
build-linux-gcc-14-no_test_run	0s
build-linux-static_lib-alt_namespace-status_checked	0s
build-linux-release	0s
check-format-and-targets	0s
build-windows-vs2022	0s
build-linux-cmake-with-folly-coroutines	0s
build-linux-unity-and-headers	0s
build-macos-cmake	0s
build-linux-clang18-asan-ubsan	0s
build-macos	-6s
build-macos-java	-6s
build-linux-java	-7s
build-linux-mini-crashtest	-7s
build-linux-java-pmd	-7s
build-linux-clang18-clang-analyze	-7s
build-linux-make-with-folly	-8s
build-linux	-8s
build-linux-clang18-mini-tsan	-9s
build-macos-java-static-universal	-9s
build-linux-java-static	-10s
build-linux-clang-18-no_test_run	-10s
build-linux-make-with-folly-lite-no-test	-10s
	-104s

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