Merge topic 'vs-slnx'

e6aa7742b0 VS: Generate .slnx files for VS 2026
95c2034b32 Tests/RunCMake: Factor out sln-format check scripts
d32b78f139 cmGlobalVisualStudio7Generator: Factor out computation of path to .sln
0a17f4e996 cmVisualStudioSlnParser: Fix storage of some `.sln` parse results
54769660e1 cmake --build: Simplify MSBuild Configuration and Platform arguments
2edc497261 cmake --build: Remove unused code for VS .NET SDK style projects

Acked-by: Kitware Robot <kwrobot@kitware.com>
Merge-request: !11205