Update changelog according to https://github.com/zaproxy/community-scripts/blob/main/CONTRIBUTING.md#naming-scripts

Author: bananabr

CHANGELOG.md

@@ -9,6 +9,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 - Variant script 'AddUrlParams.js'
 - Extender script 'ScanMonitor.js'
 - Active script 'SwaggerSecretDetector.js'
+- Active script 'OpenModelContextProtocolServer.js' - Attempts to detect Model Context Protocol (MCP) servers lacking authentication.
 
 ### Changed
 - Update minimum ZAP version to 2.16.0 and compile with Java 17.