chore(python): rename default branch to main#563

gcf-merge-on-green[bot] merged 2 commits into

maingoogleapis/python-spanner:mainfrom

owl-bot-update-lock-0ffe3bdd6c7159692df5f7744da74e5ef19966288a6bf76023e8e04e0c424d7dgoogleapis/python-spanner:owl-bot-update-lock-0ffe3bdd6c7159692df5f7744da74e5ef19966288a6bf76023e8e04e0c424d7dCopy head branch name to clipboard