Update download-artifact action to v6 in workflow

Bump the actions/download-artifact GitHub Action from v4 to v6 in the msbuild workflow to use the latest version and benefit from updates and fixes.

Author: emako

.github/workflows/msbuild.yml

@@ -64,7 +64,7 @@ jobs:
     if: github.event_name == 'push'
 
     steps:
-    - uses: actions/download-artifact@v4
+    - uses: actions/download-artifact@v6
       with:
         name: quicklook-build-files