It now uses $VCPKG_ROOT so vcpkg can be installed anywhere without the user having to specify it in the build command.
And:

Make sure the $VCPKG_ROOT is set. Install and use packages with CMake | Microsoft Learn
BeamMP uses cloudflare for protection and for it’s certificates, but cloudflare’s root certificate is no longer trusted by the mozilla trust store, causing the mod download to fail. Error on Arch Linux after update? - #5 by dekadentor
There this on the docs:

You can find the latest tags without going to the github repository as well. First update your repo locally using git fetch and then run git tag for the complete list of versions.