fix: update MCP Java SDK docs link (#2660)

Signed-off-by: Viacheslav Dobrynin <[email protected]>

Author: viacheslav-dobrynin

Diff for: spring-ai-docs/src/main/antora/modules/ROOT/pages/api/mcp/mcp-overview.adoc

@@ -75,7 +75,7 @@ a| The MCP Server is a foundational component in the Model Context Protocol (MCP
 ^a| image::mcp/java-mcp-server-architecture.jpg[Java MCP Server Architecture, width=600]
 |===
 
-For detailed implementation guidance, using the low-level MCP Client/Server APIs, refer to the link:https://modelcontextprotocol.github.io/sdk/java[MCP Java SDK documentation].
+For detailed implementation guidance, using the low-level MCP Client/Server APIs, refer to the link:https://modelcontextprotocol.io/sdk/java[MCP Java SDK documentation].
 For simplified setup using Spring Boot, use the MCP Boot Starters described below.
 
 == Spring AI MCP Integration