Add missing upload uses clause

.github/workflows/update-output-files.yml

@@ -71,6 +71,7 @@ jobs:
       - name: Contextualize Arabic strings
         run: ruby contextualize_arabic_letters.rb output/
       - name: Archive fixed output files as artifacts
+        uses: actions/upload-artifact@v4
         with:
           name: translation-output-fixed
           path: output