Fetch tags in build_ubuntu.sh
Fetch tags in build_ubuntu.sh

Not sure it will prevent the annoying issue we had, but should not hurt
too much either way

advancedtelematic/sota_client_cpp,advancedtelematic/aktualizr,advancedtelematic/sota_client_cpp,advancedtelematic/aktualizr,advancedtelematic/aktualizr,advancedtelematic/aktualizr