chore: additional sample reviewers (#979)

* chore: additional sample reviewers

* 🦉 Updates from OwlBot

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

* restore initial commit

Co-authored-by: Owl Bot <gcf-owl-bot[bot]@users.noreply.github.com>

Author: anguillanneuf

java-pubsub/.github/CODEOWNERS

@@ -9,4 +9,4 @@
 **/*.java               @googleapis/api-pubsub
 
 # The java-samples-reviewers team is the default owner for samples changes
-samples/**/*.java       @googleapis/java-samples-reviewers
+samples/**/*.java       @googleapis/java-samples-reviewers @GoogleCloudPlatform/api-pubsub-and-pubsublite