🦉 Updates from OwlBot post-processor

See https://github.com/googleapis/repo-automation-bots/blob/main/packages/owl-bot/README.md

.github/CODEOWNERS

@@ -5,8 +5,8 @@
 # https://help.github.com/en/github/creating-cloning-and-archiving-repositories/about-code-owners#codeowners-syntax
 # Note: This file is autogenerated. To make changes to the codeowner team, please update .repo-metadata.json.
 
-# @googleapis/yoshi-python @googleapis/api-bigtable are the default owners for changes in this repo
+# @googleapis/yoshi-python @googleapis/api-bigtable @googleapis/api-bigtable-partners are the default owners for changes in this repo
 *     @googleapis/yoshi-python @googleapis/api-bigtable @googleapis/api-bigtable-partners
 
-# @googleapis/python-samples-reviewers @googleapis/api-bigtable are the default owners for samples changes
+# @googleapis/python-samples-reviewers @googleapis/api-bigtable @googleapis/api-bigtable-partners are the default owners for samples changes
 /samples/   @googleapis/python-samples-reviewers @googleapis/api-bigtable @googleapis/api-bigtable-partners