Update @modelcontextprotocol/sdk to latest version (1.17.2)

This update ensures compatibility with the latest MCP SDK features including
the fetch parameter support for StreamableHTTPClientTransport.

Author: alonhar

packages/agents-core/package.json

@@ -85,7 +85,7 @@
   ],
   "license": "MIT",
   "optionalDependencies": {
-    "@modelcontextprotocol/sdk": "^1.12.0"
+    "@modelcontextprotocol/sdk": "^1.17.2"
   },
   "dependencies": {
     "@openai/zod": "npm:[email protected] - 3.25.67",