fix: default to LLVM 16 on Windows and Linux #870

Job	Run time
Build (ubuntu-22.04, 20, 8)	1m 46s
Build-Executable-windows-2022	2m 14s
Build-Executable-ubuntu-22.04	40s
Build-Executable-macos-12	1m 9s
Test-ubuntu.dockerfile	4m 58s
Test-fedora.dockerfile	4m 27s
Test-arch.dockerfile	3m 23s
Test-ubuntu-mingw.dockerfile	4m 5s
Test-windows-2022	5h 58m 13s
Test-windows-2019	18m 39s
Test-ubuntu-22.04	7m 45s
Test-ubuntu-20.04	9m 6s
Test-macos-12	3m 40s
Test-macos-11	6m 17s
Release	1s
	7h 6m 23s

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