🦉 Updates from OwlBot post-processor

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

Author: gcf-owl-bot[bot]

release-please-config.json

@@ -309,6 +309,7 @@
     "src/apis/parallelstore": {},
     "src/apis/securityposture": {},
     "src/apis/areainsights": {},
-    "src/apis/managedkafka": {}
+    "src/apis/managedkafka": {},
+    "src/apis/observability": {}
   }
 }