[NoQA] Restore render timer on performance tests

[LukasMod]

Explanation of Change

Currently all [render] times show 0 duration in tests:

• Jest's global modern fake timers also fake performance, which React's Scheduler captures once at module load — zeroing every React Profiler render duration and making Reassure [render] measurements meaningless.
• Fix: detect perf runs from the test-runner argv (perf-test / __perf__) and add performance to doNotFake for those runs only, leaving normal unit tests (which rely on faked timers) unchanged.

Fixed Issues

$
PROPOSAL:

Tests

• Verify that no errors appear in the JS console

Offline tests

QA Steps

• Verify that no errors appear in the JS console

PR Author Checklist

• I linked the correct issue in the ### Fixed Issues section above
• I wrote clear testing steps that cover the changes made in this PR
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  • I added steps for the expected offline behavior in the Offline steps section
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  • Android: Native
  • Android: mWeb Chrome
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  • iOS: mWeb Safari
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Screenshots/Videos

Android: Native

Android: mWeb Chrome

iOS: Native

iOS: mWeb Safari

MacOS: Chrome / Safari

[LukasMod]

Before (actions for other PRs) example: https://github.com/Expensify/App/actions/runs/27538652971/job/81396123168
[render] is 0ms always

With this change:
https://github.com/Expensify/App/actions/runs/27542168326/job/81408033437?pr=93573
Values exists, diff Infinity (because baseline is now 0)