bump download-artifact version to 4

Author: brentru

.github/workflows/release-offline.yml

@@ -261,7 +261,7 @@ jobs:
     needs: merge-job-build-files
     steps:
       - name: Download build artifacts from build-platform steps
-        uses: actions/download-artifact@v2
+        uses: actions/download-artifact@v4
         with:
           name: build-files
       - name: List Files