## Summary
This PR adds API integration tests for Grok debugger for both serverless
and stateful. For the serverless tests, they are used for the
Observability and Security projects only - Grok debugger is disabled in
the Search project.
The sample data and patterns are taken from the [Grok debugger
docs](https://www.elastic.co/guide/en/kibana/current/xpack-grokdebugger.html).
