chore: update codeowners for cndb subareas
# explicitly taken by someone else.
* @googleapis/yoshi-go-admins
-/storage/ @GoogleCloudPlatform/storage-dpe @googleapis/yoshi-go-admins
-/logging/ @GoogleCloudPlatform/observability-devx @googleapis/yoshi-go-admins @nicoleczhu
+/bigtable/ @googleapis/api-bigtable @googleapis/yoshi-go-admins
+/datastore/ @googleapis/firestore-dpe @googleapis/yoshi-go-admins
/errorreporting/ @GoogleCloudPlatform/observability-devx @googleapis/yoshi-go-admins @nicoleczhu
+/firestore/ @googleapis/firestore-dpe @googleapis/yoshi-go-admins
+/logging/ @GoogleCloudPlatform/observability-devx @googleapis/yoshi-go-admins @nicoleczhu
+/storage/ @GoogleCloudPlatform/storage-dpe @googleapis/yoshi-go-admins
