Add MCPClient changelog line

CHANGELOG.md

@@ -1,3 +1,4 @@
+
 # Changelog
 
 All notable changes to **Pipecat** will be documented in this file.
@@ -7,12 +8,16 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+### Added
+
+- Added `MCPClient`; a way to connect to MCP servers and use the MCP servers' tools.
+
 ### Fixed
 
 - Fixed an issue where the `SmartTurnMetricsData` was reporting 0ms for
   inference and processing time when using the `FalSmartTurnAnalyzer`.
 
-## [0.0.65] - 2025-04-23 "Sant Jordi's release"
+## [0.0.65] - 2025-04-23 "Sant Jordi's release" 🌹📕
 
 https://en.wikipedia.org/wiki/Saint_George%27s_Day_in_Catalonia