Help: Update MSVC_VERSION range for VS 17.10's MSVC 14.40 toolset

According to this blog post:

* https://devblogs.microsoft.com/cppblog/msvc-toolset-minor-version-number-14-40-in-vs-2022-v17-10/

the 14.40 through 14.49 version range will be used by the v143 toolsets.

Fixes: #26015
1 file changed