chore(deps): Bump @modelcontextprotocol/sdk from 1.20.0 to 1.20.1 (#1191)

Bumps [@modelcontextprotocol/sdk](https://github.com/modelcontextprotocol/typescript-sdk) from 1.20.0 to 1.20.1.
- [Release notes](https://github.com/modelcontextprotocol/typescript-sdk/releases)
- [Commits](modelcontextprotocol/typescript-sdk@1.20.0...1.20.1)

---
updated-dependencies:
- dependency-name: "@modelcontextprotocol/sdk"
  dependency-version: 1.20.1
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

pnpm-lock.yaml

@@ -23,7 +23,7 @@
   "dependencies": {
     "@langchain/langgraph": "^0.4.9",
     "@langchain/mcp-adapters": "^0.6.0",
-    "@modelcontextprotocol/sdk": "^1.20.0",
+    "@modelcontextprotocol/sdk": "^1.20.1",
     "langchain": "0.3.36",
     "@langchain/core": "0.3.78",
     "@langchain/textsplitters": "0.1.0",