chore: add cndb team as owners for datastore and firestore
/bigtable/cmd/emulator @igorbernstein2 @telpirion @googleapis/api-bigtable @googleapis/yoshi-go-admins
/bigtable/bttest @igorbernstein2 @telpirion @googleapis/api-bigtable @googleapis/yoshi-go-admins
/bigquery/ @googleapis/api-bigquery @googleapis/yoshi-go-admins
-/datastore/ @enocom @telpirion @googleapis/yoshi-go-admins
-/firestore/ @enocom @telpirion @googleapis/yoshi-go-admins
+/datastore/ @enocom @telpirion @googleapis/cloud-native-db-dpes @googleapis/yoshi-go-admins
+/firestore/ @enocom @telpirion @googleapis/cloud-native-db-dpes @googleapis/yoshi-go-admins
/pubsub/ @googleapis/api-pubsub @googleapis/yoshi-go-admins @shollyman
/pubsublite/ @googleapis/api-pubsub @googleapis/yoshi-go-admins @shollyman
/spanner/ @googleapis/api-spanner-go @googleapis/yoshi-go-admins
