Update vcpkg command for directxtk installation in

Author: thewh1teagle

.github/workflows/build.yml

@@ -40,7 +40,8 @@ jobs:
         if: matrix.name == 'linux-arm64'
 
       - name: Add directxtk for xaudio2
-        run: vcpkg install directxtk[xaudio2redist]:x64-windows
+        # See https://github.com/microsoft/DirectXTK/wiki/Audio#using-the-vcpkg-c-library-manager
+        run: vcpkg install directxtk[xaudio2redist]
         if: matrix.platform == 'windows-2022'
 
       - name: Build