update windows-clang.yml

.github/workflows/windows-clang.yml

@@ -27,6 +27,12 @@ jobs:
       - uses: actions/checkout@v2
         with:
           submodules: 'true'
+      - name: Cache MSYS2
+        uses: actions/cache@v3
+        id: cache-msys2
+        with:
+          path: C:/msys64
+          key: msys2-clang64-${{ runner.os }}
       - uses: msys2/setup-msys2@v2
         id: msys2
         name: Setup MSYS2
@@ -42,7 +48,6 @@ jobs:
             git clone https://github.com/microsoft/vcpkg.git
             cd vcpkg
             ./bootstrap-vcpkg.bat
-            ./vcpkg integrate install
             cd ..
       - name: Configure project with CMake and vcpkg
         env: