`openAsBlob` fails synchronously

### Version v24.14.0 ### Platform ```text Linux vali 6.18.7-76061807-generic #202601231045~1769703228~24.04~cb87b5b SMP PREEMPT_DYNAMIC Thu J x86_64 x86_64 x86_64 GNU/Linux ``` ### Subsystem `fs` ### What steps will reproduce the bug? ```js import { openAsBlob } from 'node:fs' const result = await openAsBlob('does-not-exist').catch((error) => {}) console.log(result) ``` ### How often does it reproduce? Is there a required condition? Always ### What is the expected behavior? Why is that the expected behavior? I expect `openAsBlob()` to always return a promise. If there are any problems, I expect the promise to be rejected. ### What do you see instead? Instead of returning a promise that’s rejected, `openAsBlob()` fails synchronously. This means that instead of using the `Promise.catch()` method, you have to use `try`/`catch` logic instead. ### Additional information Just marking the function as `async` on https://github.com/nodejs/node/blob/v25.8.1/lib/fs.js#L570 would fix it.