Update macos-14 to macos-latest #423

Job	Run time
build	31s
test (ubuntu-latest)	3s
test (macos-13)	9s
test-linux-tools	5s
test (macos-latest)	8s
test (windows-latest)	18s
test-macos-latest-tools	13s
test-macos-tools	10s
test-version	8s
test-windows-tools	16s
test-dup	13s
test-minisign (ubuntu-latest)	8s
test-next (ubuntu-latest)	4s
test-minisign (macos-13)	9s
test-next (macos-13)	9s
test-minisign (macos-latest)	8s
test-next (macos-latest)	7s
test-minisign (windows-latest)	10s
test-next (windows-latest)	12s
test-target	4s
	3m 25s

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