chore(python): fix docs publish build#777

parthea merged 2 commits intomaingoogleapis/python-api-core:mainfrom

owl-bot-update-lock-04c35dc5f49f0f503a306397d6d043685f8d2bb822ab515818c4208d7fb2db3agoogleapis/python-api-core:owl-bot-update-lock-04c35dc5f49f0f503a306397d6d043685f8d2bb822ab515818c4208d7fb2db3aCopy head branch name to clipboard