text: Title: [Alerting] Move `kbn-action` tool to the Kibana repository. 
  Body: To make Alerting framework [support enablement](https://github.com/elastic/kibana/issues/83484) easier and simpler we often use `kbn-action` tool, designed by @pmuellr, which is located under repository https://github.com/pmuellr/kbn-action.
  Based on the discussion with @elastic/kibana-alerting-services team and @kobelb we decided to move this tool to be under the Kibana repository. This will help us to maintain it and keep updated according to the framework changes.
  In addition, we need to update `kbn-action` to support the new terminology API for Rules and Connectors.
  Update Alerting Troubleshooting [docs](https://www.elastic.co/guide/en/kibana/master/alerting-troubleshooting.html)