🦉 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]

google-cloud-retail-v2/snippets/snippet_metadata_google.cloud.retail.v2.json

@@ -1,7 +1,7 @@
 {
   "client_library": {
     "name": "google-cloud-retail-v2",
-    "version": "2.8.0",
+    "version": "2.8.1",
     "language": "RUBY",
     "apis": [
       {