update build.yaml

Author: RoderickQiu

.github/workflows/build.yaml

@@ -54,7 +54,7 @@ jobs :
         run : yarn
       - name : Build AppImage
         run : npm run appimage
-      - uses : actions/upload-artifact@v2
+      - uses : actions/upload-artifact@v4
         with :
           name: linux
           path : packaged/wnr*