build(deps): bump @modelcontextprotocol/sdk from 1.16.0 to 1.20.2

Bumps [@modelcontextprotocol/sdk](https://github.com/modelcontextprotocol/typescript-sdk) from 1.16.0 to 1.20.2.
- [Release notes](https://github.com/modelcontextprotocol/typescript-sdk/releases)
- [Commits](modelcontextprotocol/typescript-sdk@1.16.0...1.20.2)

---
updated-dependencies:
- dependency-name: "@modelcontextprotocol/sdk"
  dependency-version: 1.20.2
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

package-lock.json

@@ -60,7 +60,7 @@
 	},
 	"dependencies": {
 		"@langchain/core": "0.3.43",
-		"@modelcontextprotocol/sdk": "^1.15.1",
+		"@modelcontextprotocol/sdk": "^1.20.2",
 		"zod": "3.24.0",
 		"zod-to-json-schema": "^3.24.6"
 	},