macos

Remove `core.h` from README (#4422) #8128

Job	Run time
build (macos-14, Release, 17)	59s
build (macos-14, Release, 20)	1m 22s
build (macos-13, Debug, 20)	2m 55s
build (macos-14, Debug, 17)	1m 8s
build (macos-14, Debug, 20)	43s
build (macos-14, Release, 11)	1m 0s
build (macos-14, 23, Release, -DBUILD_SHARED_LIBS=ON)	1m 9s
build (macos-14, Debug, 11)	36s
build (macos-13, Release, 20)	2m 53s
	12m 45s

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