Update Azure MCP version in cs proj to 2.0.0-beta.25 (#1953)

Update version in cs proj to 2.0.0-beta.25

Author: msalaman

servers/Azure.Mcp.Server/src/Azure.Mcp.Server.csproj

@@ -1,6 +1,6 @@
 <Project Sdk="Microsoft.NET.Sdk">
   <PropertyGroup>
-    <Version>2.0.0-beta.24</Version>
+    <Version>2.0.0-beta.25</Version>
     <CliName>azmcp</CliName>
     <AssemblyTitle>Azure MCP Server</AssemblyTitle>
     <Description>Azure MCP Server - Model Context Protocol implementation for Azure</Description>