tools/simulator: resolve simulator race

[HuSharp]

What problem does this PR solve?

Issue Number: Ref #8135

What is changed and how does it work?

Check List

Tests

• Manual test (add detailed scripts or steps below)

Release note

None.

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 2 lines in your changes missing coverage. Please review.

Project coverage is 77.15%. Comparing base (bdbe73e) to head (170ddde).

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #8376      +/-   ##
==========================================
- Coverage   77.32%   77.15%   -0.17%     
==========================================
  Files         470      470              
  Lines       61687    61689       +2     
==========================================
- Hits        47701    47599     -102     
- Misses      10405    10501      +96     
- Partials     3581     3589       +8     

Flag	Coverage Δ
unittests	77.15% <0.00%> (-0.17%)	⬇️

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[ti-chi-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: lhy1024, rleungx

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[ti-chi-bot]

[LGTM Timeline notifier]

Timeline:

• 2024-07-09 01:48:36.921192086 +0000 UTC m=+322214.156426200: ☑️ agreed by lhy1024.
• 2024-07-09 03:32:55.723628964 +0000 UTC m=+328472.958863077: ☑️ agreed by rleungx.

[ti-chi-bot]

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