[msvc ci] update Qt version

Author: khonoka

.github/workflows/msvc-build.yaml

@@ -41,7 +41,7 @@ jobs:
       - name: Install Qt
         uses: jurplel/install-qt-action@v2.13.2
         with:
-          version: 6.3.1
+          version: 6.6.0
           arch: win64_msvc2019_64
           aqtversion: ==1.2.2
           modules: "qt5compat qtimageformats"