[BUG]: `createNodeMiddleware` is not exported from @octokit/oauth-app

[SayakMukhopadhyay]

What happened?

Although it is possible to use the OAuthApp object from octokit, it can't be used with createNodeMiddleware as the only createNodeMiddleware that is exported is from @octokit/app.

In fact, the docs at https://github.com/octokit/octokit.js?tab=readme-ov-file#oauth show a OAuthApp object being used with createNodeMiddleware, which is not possible right now.

I am willing to send in a PR for this.

Versions

Octokit js 5.0..2

Relevant log output

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[github-actions]

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