misc: try to assign rid for android demo build.

Author: zdpcdt

.github/workflows/publish.yml

@@ -83,7 +83,7 @@ jobs:
         run: dotnet restore
 
       - name: Publish Android
-        run: dotnet publish demo/Semi.Avalonia.Demo.Android -c Release -f net8.0-android --no-restore -o ./publish
+        run: dotnet publish demo/Semi.Avalonia.Demo.Android -c Release -f net8.0-android --no-restore -o ./publish -p:RuntimeIdentifier=android-arm64
 
       - name: Upload a Build Artifact
         uses: actions/upload-artifact@v4.3.1