Bump body-parser from 2.2.2 to 2.3.0 in /preview

Bumps [body-parser](https://github.com/expressjs/body-parser) from 2.2.2 to 2.3.0.
- [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/v2.2.2...v2.3.0)

---
updated-dependencies:
- dependency-name: body-parser
  dependency-version: 2.3.0
  dependency-type: direct:production
...

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

preview/package.json

@@ -11,7 +11,7 @@
   "keywords": [],
   "author": "Microsoft Corporation",
   "dependencies": {
-    "body-parser": "^2.2.2",
+    "body-parser": "^2.3.0",
     "express": "^5.2.1",
     "follow-redirects": "^1.16.0",
     "http-proxy-middleware": "^3.0.7",