gitlab-ci: Update Windows packaging builds to MSVC 14.34 toolset

Problems with `cmake-gui` when compiled with the MSVC 14.33 toolset,
that did not occur with the MSVC 14.32 toolset, no longer occur with the
MSVC 14.34 toolset.  Revert commit cb8b27a901 (gitlab-ci: Use separate
MSVC toolset specification for packaging jobs, 2022-08-18, v3.24.2~24^2~1)
and update the remaining toolset version references.

Fixes: #23859