deps(example): Bump the dependencies group

Bumps the dependencies group in /examples/nextjs-14-openai with 4 updates: [openai](https://github.com/openai/openai-node), [@types/react](https://github.com/DefinitelyTyped/DefinitelyTyped/tree/HEAD/types/react), [@types/react-dom](https://github.com/DefinitelyTyped/DefinitelyTyped/tree/HEAD/types/react-dom) and [postcss](https://github.com/postcss/postcss).


Updates `openai` from 4.26.0 to 4.26.1
- [Release notes](https://github.com/openai/openai-node/releases)
- [Changelog](https://github.com/openai/openai-node/blob/master/CHANGELOG.md)
- [Commits](openai/openai-node@v4.26.0...v4.26.1)

Updates `@types/react` from 18.2.51 to 18.2.55
- [Release notes](https://github.com/DefinitelyTyped/DefinitelyTyped/releases)
- [Commits](https://github.com/DefinitelyTyped/DefinitelyTyped/commits/HEAD/types/react)

Updates `@types/react-dom` from 18.2.18 to 18.2.19
- [Release notes](https://github.com/DefinitelyTyped/DefinitelyTyped/releases)
- [Commits](https://github.com/DefinitelyTyped/DefinitelyTyped/commits/HEAD/types/react-dom)

Updates `postcss` from 8.4.33 to 8.4.35
- [Release notes](https://github.com/postcss/postcss/releases)
- [Changelog](https://github.com/postcss/postcss/blob/main/CHANGELOG.md)
- [Commits](postcss/postcss@8.4.33...8.4.35)

---
updated-dependencies:
- dependency-name: openai
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: dependencies
- dependency-name: "@types/react"
  dependency-type: direct:development
  update-type: version-update:semver-patch
  dependency-group: dependencies
- dependency-name: "@types/react-dom"
  dependency-type: direct:development
  update-type: version-update:semver-patch
  dependency-group: dependencies
- dependency-name: postcss
  dependency-type: direct:development
  update-type: version-update:semver-patch
  dependency-group: dependencies
...

Signed-off-by: dependabot[bot] <[email protected]>

examples/nextjs-14-openai/package.json

@@ -12,7 +12,7 @@
     "@arcjet/next": "file:../../arcjet-next",
     "ai": "^2.2.33",
     "next": "14.0.4",
-    "openai": "^4.26.0",
+    "openai": "^4.26.1",
     "openai-chat-tokens": "^0.2.8",
     "react": "^18",
     "react-dom": "^18"