continue execution when config is missing
continue execution when config is missing

the previous testcases failed because the program exited when the
configuration is missing. As the configuration is checked by the modules
that use it, its fine to just let the program continue and keep the old
testcases.

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