docs: Update changelog and README for v0.3.10 release

- Move MCP server feature from unreleased to v0.3.10
- Update provider version in README example to 0.3.10

Author: Nicholas Cecere

CHANGELOG.md

@@ -7,6 +7,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+## [0.3.10] - 2025-08-10
+
 ### Added
 - **New Resource**: `litellm_mcp_server` - Manage MCP (Model Context Protocol) servers
   - Support for HTTP, SSE, and stdio transport types

README.md

@@ -28,7 +28,7 @@ terraform {
   required_providers {
     litellm = {
       source  = "ncecere/litellm"
-      version = "~> 0.2.3"
+      version = "~> 0.3.10"
     }
   }
 }