feat: support fake timers for node:timers and node:timers/promise

[hi-ogawa]

Description

• closes Use fakeTimers does not mock imports from node:timers or node:timers/promises #10871

TODO

• docs
• simplify patches

Apparently, the doc has never mentioned the mocking behavior for node builtin node:timers mocking, so need to discuss whether this is intended. Also update doc accordingly.

---

There were multiple issues with previous approach:

• stashing timersModule = __vitest_required__.timers (and async timer variant) runs during fake timer module scope and __vitest_required__ wasn't setup yet at that point.
• __vitest_required__.timers is originally import timers from "node:timers" and this only patches default/cjs exports objects. In order to propagate the mocking to named imports import { setTimeout } from "node:timers", we can use node's syncBuiltinESMExports module util.

This PR fixes them by patching fake-timers more and wire-up syncBuiltinESMExports for normal runner and vm runner separately.

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