Bump the npm_and_yarn group across 1 directory with 3 updates

Bumps the npm_and_yarn group with 2 updates in the /tests/helpers directory: [@modelcontextprotocol/sdk](https://github.com/modelcontextprotocol/typescript-sdk) and [body-parser](https://github.com/expressjs/body-parser).


Updates `@modelcontextprotocol/sdk` from 1.22.0 to 1.25.2
- [Release notes](https://github.com/modelcontextprotocol/typescript-sdk/releases)
- [Commits](https://github.com/modelcontextprotocol/typescript-sdk/compare/1.22.0...v1.25.2)

Updates `body-parser` from 2.2.0 to 2.2.2
- [Release notes](https://github.com/expressjs/body-parser/releases)
- [Changelog](https://github.com/expressjs/body-parser/blob/master/HISTORY.md)
- [Commits](https://github.com/expressjs/body-parser/compare/v2.2.0...v2.2.2)

Updates `qs` from 6.14.0 to 6.14.1
- [Changelog](https://github.com/ljharb/qs/blob/main/CHANGELOG.md)
- [Commits](https://github.com/ljharb/qs/compare/v6.14.0...v6.14.1)

---
updated-dependencies:
- dependency-name: "@modelcontextprotocol/sdk"
  dependency-version: 1.25.2
  dependency-type: direct:production
  dependency-group: npm_and_yarn
- dependency-name: body-parser
  dependency-version: 2.2.2
  dependency-type: indirect
  dependency-group: npm_and_yarn
- dependency-name: qs
  dependency-version: 6.14.1
  dependency-type: indirect
  dependency-group: npm_and_yarn
...

Signed-off-by: dependabot[bot] <support@github.com>

tests/helpers/package.json

@@ -8,7 +8,7 @@
     "clean": "rm -rf build"
   },
   "dependencies": {
-    "@modelcontextprotocol/sdk": "^1.22.0"
+    "@modelcontextprotocol/sdk": "^1.25.2"
   },
   "devDependencies": {
     "@types/node": "^22.13.4",