[Demo Dependencies]: Bump @vitejs/plugin-react

Bumps the dependencies-dev group in /docs-src with 1 update: [@vitejs/plugin-react](https://github.com/vitejs/vite-plugin-react/tree/HEAD/packages/plugin-react).


Updates `@vitejs/plugin-react` from 4.2.1 to 4.3.0
- [Release notes](https://github.com/vitejs/vite-plugin-react/releases)
- [Changelog](https://github.com/vitejs/vite-plugin-react/blob/main/packages/plugin-react/CHANGELOG.md)
- [Commits](https://github.com/vitejs/vite-plugin-react/commits/v4.3.0/packages/plugin-react)

---
updated-dependencies:
- dependency-name: "@vitejs/plugin-react"
  dependency-type: direct:development
  update-type: version-update:semver-minor
  dependency-group: dependencies-dev
...

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

docs-src/package.json

@@ -32,7 +32,7 @@
     "@testing-library/jest-dom": "^6.4.5",
     "@testing-library/react": "^15.0.7",
     "@testing-library/user-event": "^14.5.2",
-    "@vitejs/plugin-react": "^4.2.1",
+    "@vitejs/plugin-react": "^4.3.0",
     "rimraf": "^5.0.7",
     "sass": "^1.77.2",
     "vite": "^5.2.11",