windows-2019 will be fully retired by the end of June, and 2025 is the latest version.
This means that Windows build artifacts will be built using MSVC 2022, not MSVC 2019. They should be ABI-compatible across this change, since they expose no third-party types and Microsoft say that their compiler and standard library didn't break ABI between 2019 and 2022, but a newer version of the redistributable might be needed.
windows-2016 was scheduled for removal in April 2022, though the
previous commit's build still worked.
This also means that the MSVC 2019 redistributable is now required.
Although libloot 0.15 is built with MSVC 2017, 2019 can link code
build with 2017 and the 2019 redistributable effectively replaces
the 2017 redistributable, so there's no compatibility issues.