cibuildwheel: update to VS 18

Assisted-by: Kimi-k2.6

Author: jdavid

docs/install.rst

@@ -309,7 +309,7 @@ variable.  The following recipe shows you how to do it:
 
    git clone --depth=1 -b v1.9.4 https://github.com/libgit2/libgit2.git
    $env:CMAKE_INSTALL_PREFIX = "C:/Dev/libgit2"
-   $env:CMAKE_GENERATOR = "Visual Studio 17 2022"
+   $env:CMAKE_GENERATOR = "Visual Studio 18 2026"
    $env:CMAKE_GENERATOR_PLATFORM = "x64" # or "Win32" or "ARM64"
    cmake -B libgit2/build -S libgit2
    cmake --build libgit2/build --config release --target install

pyproject.toml

@@ -39,23 +39,23 @@ before-build = ""
 [[tool.cibuildwheel.overrides]]
 select="*-win_amd64"
 inherit.environment="append"
-environment.CMAKE_GENERATOR = "Visual Studio 17 2022"
+environment.CMAKE_GENERATOR = "Visual Studio 18 2026"
 environment.CMAKE_GENERATOR_PLATFORM = "x64"
 environment.CMAKE_INSTALL_PREFIX = "C:/libgit2_install_x86_64"
 environment.LIBGIT2 = "C:/libgit2_install_x86_64"
 
 [[tool.cibuildwheel.overrides]]
 select="*-win32"
 inherit.environment="append"
-environment.CMAKE_GENERATOR = "Visual Studio 17 2022"
+environment.CMAKE_GENERATOR = "Visual Studio 18 2026"
 environment.CMAKE_GENERATOR_PLATFORM = "Win32"
 environment.CMAKE_INSTALL_PREFIX = "C:/libgit2_install_x86"
 environment.LIBGIT2 = "C:/libgit2_install_x86"
 
 [[tool.cibuildwheel.overrides]]
 select="*-win_arm64"
 inherit.environment="append"
-environment.CMAKE_GENERATOR = "Visual Studio 17 2022"
+environment.CMAKE_GENERATOR = "Visual Studio 18 2026"
 environment.CMAKE_GENERATOR_PLATFORM = "ARM64"
 environment.CMAKE_INSTALL_PREFIX = "C:/libgit2_install_arm64"
 environment.LIBGIT2 = "C:/libgit2_install_arm64"