fix: flaky test `Backup and Restore should backup the account setting…

…s` (#27565)

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## **Description**

Race condition originated when trying to read the backup file. Checking
the ci artifacts we can see how [the backup file
](https://app.circleci.com/pipelines/github/MetaMask/metamask-extension/101416/workflows/968f676b-e196-4168-bfb2-47509fe34a59/jobs/3775778/artifacts)was
downloaded correctly, so the problem is somewhere in the read/access
point.
After checking the documentation I've seen that using `fs.access` before
reading a file is discouraged as it could cause a race condition:

![Screenshot from 2024-10-02
15-32-21](https://github.com/user-attachments/assets/0329ef67-e4da-483d-9cf8-c159734de0fe)


I've removed that step, and we are now reading the file directly, and
added a console.log in the catch block, to get more information in the
case the test fails in the reading step, so we can better debug.

We can keep monitoring the test in case it fails in the future. So far,
it hasn't failed after several local re-runs (and ci with extra x5)

[![Open in GitHub
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## **Related issues**

Fixes: #24668

## **Manual testing steps**

1. Check ci
2. Run locally the test

## **Screenshots/Recordings**

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before and after of your change. -->

### **Before**

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### **After**

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- [x] I've completed the PR template to the best of my ability
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## **Pre-merge reviewer checklist**

- [ ] I've manually tested the PR (e.g. pull and build branch, run the
app, test code being changed).
- [ ] I confirm that this PR addresses all acceptance criteria described
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test/e2e/tests/settings/backup-restore.spec.js

@@ -31,10 +31,10 @@ const getBackupJson = async () => {
 
   try {
     const backup = `${downloadsFolder}/${userDataFileName}`;
-    await fs.access(backup);
     const contents = await fs.readFile(backup);
     return JSON.parse(contents.toString());
   } catch (e) {
+    console.log('Error reading the backup file', e);
     return null;
   }
 };