Update action version to one supporting Node 24

Author: dstrome

.github/workflows/BackgroundTasks.yml

@@ -22,7 +22,7 @@ jobs:
           mkdir -p ./pr
           echo $PayloadJson > ./pr/PayloadJson.json
           sed -i -e "s/$AccessToken/XYZ/g" ./pr/PayloadJson.json
-      - uses: actions/upload-artifact@v4
+      - uses: actions/upload-artifact@v6
         with:
           name: PayloadJson
           path: pr/