[Bug] [DaC] Fix Typo in CLI.md (#4491)

* Fix Typo in CLI.md

Author: eric-forte-elastic

CLI.md

@@ -25,7 +25,7 @@ Currently supported arguments:
 * elasticsearch_url
 * kibana_url
 * cloud_id
-* *_username (kibana and es)
+* *_user (kibana and es)
 * *_password (kibana and es)
 * api_key
 

pyproject.toml

@@ -1,6 +1,6 @@
 [project]
 name = "detection_rules"
-version = "0.4.15"
+version = "0.4.16"
 description = "Detection Rules is the home for rules used by Elastic Security. This repository is used for the development, maintenance, testing, validation, and release of rules for Elastic Security’s Detection Engine."
 readme = "README.md"
 requires-python = ">=3.12"