chore: add default_version and codeowner_team to .repo-metadata.json (#33)
chore: add default_version and codeowner_team to .repo-metadata.json (#33)

By default the code owner will be googleapis/yoshi-python. This change is needed for the following synthtool PRs.

googleapis/synthtool#1201
googleapis/synthtool#1114

googleapis/python-source-context,googleapis/python-source-context