fix: update LLVM to 19 + update cmake, meson, task, mingw + feat: support Windows arm cross-compilation + test on MacOS 15 #1621

Job	Run time
Build (ubuntu-22.04)	1m 5s
Docker-setup-cpp-ubuntu-llvm	21s
Build-Executable-windows-2022	19s
Docker-setup-cpp-fedora-llvm	22s
Build-Executable-ubuntu-24.04	21s
Test-windows-2022	18s
Docker-setup-cpp-arch-llvm	21s
Build-Executable-macos-13	20s
Test-windows-2019	20s
Docker-setup-cpp-ubuntu-mingw	20s
Build-Executable-macos-14	23s
Test-ubuntu-24.04	21s
Test-ubuntu-22.04	24s
Test-ubuntu-20.04	27s
Test-macos-15	34s
Test-macos-15-large	1s
Test-macos-14	21s
Test-macos-14-large	1s
Test-macos-13	18s
Release	1s
	6m 58s

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