gitlab-ci: Update non-packaging Windows builds to MSVC 14.33 toolset
Restore the change from !7578 (merged), but not for packaging jobs.
cmake-gui
is still buggy when compiled with the newer toolset.
Use separate MSVC toolset specification for packaging jobs. This will be useful for testing CMake with one version of MSVC while packaging the official binaries with another version.
Issue: #23859 (closed)
Backport: release