Update Fabric MCP Server changelog for beta.3 release

Author: HasanAboShally

servers/Fabric.Mcp.Server/CHANGELOG.md

@@ -9,7 +9,13 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ### Added
 
-- Fix UI for server help messages and display to show Fabric.Mcp.Server. [[#1269](https://github.com/microsoft/mcp/pull/1269)]
+- Added Docker image release for Fabric MCP Server. [[#1241](https://github.com/microsoft/mcp/pull/1241)]
+- Added new item definitions for Lakehouse, Ontology, and Snowflake Database workloads. [[#1240](https://github.com/microsoft/mcp/pull/1240)]
+- Enhanced README documentation for released packages.
+
+### Fixed
+
+- Fixed UI for server help messages and display to show Fabric.Mcp.Server. [[#1269](https://github.com/microsoft/mcp/pull/1269)]
 
 
 ## [0.0.1] - 2025-09-16