fix: qt6 build error

Author: barry

.github/workflows/macos.yml

@@ -29,7 +29,7 @@ jobs:
             build-arch: x64
           - qt-ver: 6.5.3
             qt-arch-install: arm64
-            build-arch: [x64, arm64]
+            build-arch: arm64
     env:
       target-name: QtScrcpy
       qt-install-path: ${{ github.workspace }}/${{ matrix.qt-ver }}