chore: add default_version and codeowner_team to .repo-metadata.json (#282)
chore: add default_version and codeowner_team to .repo-metadata.json (#282)

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

* Assign @googleapis/actools-python as codeowner
googleapis/python-api-core,googleapis/python-api-core