chore(python): update dependencies in .kokoro/docker/docs#846

Linchin merged 2 commits intomaingoogleapis/python-bigquery-storage:mainfrom

owl-bot-update-lock-2ed982f884312e4883e01b5ab8af8b6935f0216a5a2d82928d273081fc3be562googleapis/python-bigquery-storage:owl-bot-update-lock-2ed982f884312e4883e01b5ab8af8b6935f0216a5a2d82928d273081fc3be562Copy head branch name to clipboard