Add new job in CI for MSVC to test C++26 support.

Author: FranckRJ

.github/workflows/ci_windows_msvc.yml

@@ -110,6 +110,22 @@ jobs:
             architecture: "x64",
             cxx_standard: 23
           }
+          - {
+            name: "Windows 2025 MSVC 2022 Win32 C++26",
+            os: windows-2025,
+            build_type: Debug,
+            generator: "Visual Studio 17 2022",
+            architecture: "Win32",
+            cxx_standard: 26
+          }
+          - {
+            name: "Windows 2025 MSVC 2022 x64 C++26",
+            os: windows-2025,
+            build_type: Debug,
+            generator: "Visual Studio 17 2022",
+            architecture: "x64",
+            cxx_standard: 26
+          }
     steps:
       - uses: actions/checkout@v3
       - name: Build project