add macos 14 test #326

Job	Run time
check-single-include	4s
test-ubuntu-20.04-gcc-9	1m 4s
test-ubuntu-20.04-gcc-11	1m 24s
test-ubuntu-20.04-clang-9	1m 22s
test-ubuntu-20.04-clang-12	1m 14s
test-ubuntu-22.04-clang-15-no-exceptions	50s
test-ubuntu-22.04-gcc	54s
test-ubuntu-24.04-gcc	53s
test-windows-2019-msvc	1m 2s
test-windows-2019-clang	1m 30s
test-windows-2019-gcc	2m 3s
test-windows-2022-msvc	1m 10s
test-macOS-12-gcc	1m 21s
test-macOS-13-clang	2m 49s
test-macOS-14-clang	1m 12s
	18m 52s

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