AIRAVATA-3420 Revert download url change

Keep old behavior since new behavior requires changes to airavata-django-portal and this
way we can update the SDK first and then the airavata-django-portal

airavata_django_portal_sdk/urls.py

@@ -9,7 +9,7 @@
 def get_download_url(data_product_uri):
     """(Deprecated) Get URL for downloading data product identified by data_product_uri."""
     warnings.warn("Use user_storage.get_download_url instead.", DeprecationWarning)
-    return (reverse("airavata_django_portal_sdk:download_file") + "?" +
+    return (reverse("django_airavata_api:download_file") + "?" +
             urlencode({"data-product-uri": data_product_uri}))