🦉 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-apps-chat-v1/snippets/snippet_metadata_google.chat.v1.json

@@ -1,7 +1,7 @@
 {
   "client_library": {
     "name": "google-apps-chat-v1",
-    "version": "0.17.0",
+    "version": "0.18.0",
     "language": "RUBY",
     "apis": [
       {