fixing deprecated warning in macos #999

Job	Run time
CppUnix (Release, ubuntu-latest)	7m 30s
CppUnix (Release, macos-12)	4m 30s
CppWindows (static, Release, Win32)	3m 58s
CppUnix (Debug, ubuntu-latest)	5m 42s
CppWindows (static, Release, x64)	4m 17s
CppUnix (Debug, macos-12)	4m 7s
CppWindows (static, Debug, Win32)	6m 19s
CppWindows (static, Debug, x64)	3m 19s
CppWindows (dynamic, Release, Win32)	4m 8s
CppWindows (dynamic, Release, x64)	4m 32s
CppWindows (dynamic, Debug, Win32)	3m 14s
CppWindows (dynamic, Debug, x64)	3m 20s
	54m 56s

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