chore(deps): bump @modelcontextprotocol/sdk from 1.19.1 to 1.20.0 (#14)

Author: dependabot[bot]

package-lock.json

@@ -45,7 +45,7 @@
     "vitest": "^3.2.4"
   },
   "dependencies": {
-    "@modelcontextprotocol/sdk": "^1.19.1",
+    "@modelcontextprotocol/sdk": "^1.20.0",
     "@types/express": "^5.0.3",
     "express": "^5.1.0",
     "pino": "^9.0.0",