chore: add default_version and codeowner_team to .repo-metadata.json (#252)
chore: add default_version and codeowner_team to .repo-metadata.json (#252)

* chore: add default_version and codeowner_team to .repo-metadata.json

* update default_version and codeowner_team
googleapis/python-pubsublite,googleapis/python-pubsublite