When we first set vcpkg's executable architecture to x86, we chose that
option because it was the only way we could build that would run on all
Windows.
Since then, arm64 has gained the ability to run amd64 programs, and
arm has lost relevancy. Platforms like nanoserver without a wow64
subsystem are also increasing in importance. And we don't really expect
x86 hosted dev boxes to be a thing in 2023.
See also: https://github.com/microsoft/vcpkg-tool/pull/972 (no plans to
change official compiler to clang-cl though)
Resolves https://github.com/microsoft/vcpkg/issues/25521
5212a08bc7