chore(python): set coverage level to 100%#109

parthea merged 2 commits intomaingoogleapis/python-binary-authorization:mainfrom

owl-bot-update-lock-d22cd2ddce65fdac6986f115563faf2fc81482b09dfbea83ac2808c92ecfdff0googleapis/python-binary-authorization:owl-bot-update-lock-d22cd2ddce65fdac6986f115563faf2fc81482b09dfbea83ac2808c92ecfdff0Copy head branch name to clipboard