Use OS label for actions/cache. vcpkg only uses same os cache

Author: hsbt

.github/workflows/windows.yml

@@ -138,7 +138,7 @@ jobs:
         uses: actions/cache@5a3ec84eff668545956fd18022155c47e93e2684 # v4.2.3
         with:
           path: C:\Users\runneradmin\AppData\Local\vcpkg\archives
-          key: vcpkg-${{ matrix.target || 'x64' }}-${{ hashFiles('src/vcpkg.json') }}
+          key: windows-${{ matrix.os }}-vcpkg-${{ hashFiles('src/vcpkg.json') }}
 
       - name: Install libraries with vcpkg
         run: |