chore(deps): bump react-syntax-highlighter in /frontend

Bumps [react-syntax-highlighter](https://github.com/react-syntax-highlighter/react-syntax-highlighter) from 15.6.6 to 16.1.0.
- [Release notes](https://github.com/react-syntax-highlighter/react-syntax-highlighter/releases)
- [Changelog](https://github.com/react-syntax-highlighter/react-syntax-highlighter/blob/master/CHANGELOG.MD)
- [Commits](https://github.com/react-syntax-highlighter/react-syntax-highlighter/compare/v15.6.6...v16.1.0)

---
updated-dependencies:
- dependency-name: react-syntax-highlighter
  dependency-version: 16.1.0
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

frontend/package.json

@@ -45,7 +45,7 @@
     "react-markdown": "^9.0.1",
     "react-redux": "^9.2.0",
     "react-router-dom": "^7.6.1",
-    "react-syntax-highlighter": "^15.6.1",
+    "react-syntax-highlighter": "^16.1.1",
     "reactflow": "^11.11.4",
     "rehype-katex": "^7.0.1",
     "remark-gfm": "^4.0.0",