Correct typo of ATTENTION in status enumeration

[felddy]

🗣 Description

This PR corrects the spelling of ATTENTION in the StatusPrinter schema.

💭 Motivation and context

While implementing a notification system that checks the status of my printer using the API I noticed that one of the statuses were misspelled.

🧪 Testing

The code was able to be built and ran locally. It did generate errors in the web console which I suspect is unrelated:

[Warning] Handle error – {code: 404, eTag: null, data: {title: "Error 404", message: "Not Found"}} (main.c11cf35ba578f5d7d0db.js, line 6126)

✅ Pre-approval checklist

• [x] This PR has an informative and human-readable title.
• [x] Changes are limited to a single goal - eschew scope creep!
• [x] All new and existing tests pass.