Updated CI windows image to 2022

Author: redboltz

.github/workflows/gha.yml

@@ -195,11 +195,11 @@ jobs:
 
   windows:
     name: ${{ format('Windows cxx{0}', matrix.cxx) }}
-    runs-on: windows-2019
+    runs-on: windows-2022
     strategy:
       fail-fast: false
       matrix:
-        # MSVC2019 only supports /std:c++14, /std:c++17 and /std:c++latest
+        # MSVC2022 only supports /std:c++14, /std:c++17 and /std:c++latest
         cxx: [14, 17, 20]
         pp_flag: ["/Zc:preprocessor-", "/Zc:preprocessor"]
     steps:
@@ -228,7 +228,7 @@ jobs:
         md build
         cmake `
             -A x64 `
-            -G "Visual Studio 16 2019" `
+            -G "Visual Studio 17 2022" `
             -D CMAKE_TOOLCHAIN_FILE="C:/vcpkg/scripts/buildsystems/vcpkg.cmake" `
             -D MSGPACK_BUILD_TESTS=ON `
             -D $CPPVER `