macos

Add AppleClang to CI tests #685

Job	Run time
build (AppleClang, Headers, Debug)	1m 3s
build (AppleClang, Headers, Release)	57s
build (LLVM-Clang-16, Headers, Debug)	1m 8s
build (LLVM-Clang-16, Headers, Release)	1m 27s
build (LLVM-Clang-17, Headers, Debug)	1m 29s
build (LLVM-Clang-17, Headers, Release)	1m 20s
build (LLVM-Clang-17, Module, Debug)	1m 7s
build (LLVM-Clang-17, Module, Release)	1m 17s
build (LLVM-Clang-18, Headers, Debug)	56s
build (LLVM-Clang-18, Headers, Release)	54s
build (LLVM-Clang-18, Module, Debug)	52s
build (LLVM-Clang-18, Module, Release)	1m 7s
build (LLVM-Clang-19, Headers, Debug)	1m 34s
build (LLVM-Clang-19, Headers, Release)	1m 50s
build (LLVM-Clang-19, Module, Debug)	1m 18s
build (LLVM-Clang-19, Module, Release)	1m 19s
	19m 38s

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