…e timers (#7972)

## Explanation

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## References

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## Checklist

- [ ] I've updated the test suite for new or updated code as appropriate
- [ ] I've updated documentation (JSDoc, Markdown, etc.) for new or
updated code as appropriate
- [ ] I've communicated my changes to consumers by [updating changelogs
for packages I've
changed](https://github.com/MetaMask/core/tree/main/docs/processes/updating-changelogs.md)
- [ ] I've introduced [breaking
changes](https://github.com/MetaMask/core/tree/main/docs/processes/breaking-changes.md)
in this PR and have prepared draft pull requests for clients and
consumer packages to resolve them

<!-- CURSOR_SUMMARY -->
---

> [!NOTE]
> **Low Risk**
> Test-only refactor that swaps mocking/timer utilities and removes a
dev dependency; low risk aside from potential timing-related flakiness
if fake timer behavior differs.
> 
> **Overview**
> Refactors `@metamask/phishing-controller` tests to replace `sinon`
stubs/spies/fake timers with Jest equivalents (`jest.spyOn`, `jest.fn`,
`jest.useFakeTimers`/`advanceTimersByTime`) across
`CacheManager.test.ts`, `PhishingController.test.ts`,
`BulkTokenScan.test.ts`, and `utils.test.ts`.
> 
> Removes `sinon` from `packages/phishing-controller` devDependencies
(and `yarn.lock`), and updates `eslint-suppressions.json` accordingly.
> 
> <sup>Written by [Cursor
Bugbot](https://cursor.com/dashboard?tab=bugbot) for commit
3600cd2. This will update automatically
on new commits. Configure
[here](https://cursor.com/dashboard?tab=bugbot).</sup>
<!-- /CURSOR_SUMMARY -->