build(deps-dev): bump @types/react in /test/dataflow-visualizer

Bumps [@types/react](https://github.com/DefinitelyTyped/DefinitelyTyped/tree/HEAD/types/react) from 16.14.69 to 19.2.18.
- [Release notes](https://github.com/DefinitelyTyped/DefinitelyTyped/releases)
- [Commits](https://github.com/DefinitelyTyped/DefinitelyTyped/commits/HEAD/types/react)

---
updated-dependencies:
- dependency-name: "@types/react"
  dependency-version: 19.2.18
  dependency-type: direct:development
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

test/dataflow-visualizer/package.json

@@ -11,7 +11,7 @@
     "@playwright/test": "1.62.1",
     "@types/d3": "7.4.3",
     "@types/node": "26.2.0",
-    "@types/react": "16.14.69",
+    "@types/react": "19.2.18",
     "@types/react-dom": "16.9.25",
     "typescript": "7.0.2"
   }