chore: normalize lang_version to use quotes

service-bot-app[bot] · service-bot-app[bot] · commit d6380153e2fb · 2026-06-27T23:08:06.000Z
diff --git a/service.yml b/service.yml
@@ -1,6 +1,6 @@
 name: kafka-connect-upgrade-tests
 lang: java
-lang_version: 8
+lang_version: "8"
 github:
   enable: true
   repo_name: confluentinc/kafka-connect-upgrade-tests
