api: fix cannot dump trace (#7255)

[ti-chi-bot]

This is an automated cherry-pick of #7255

What problem does this PR solve?

Issue Number: Close #7253

What is changed and how does it work?

api: fix cannot dump trace with dashboard

Check List

Tests

• Unit test
• Integration test
• Manual test (add detailed scripts or steps below)
  
  can download:
  

and with curl:

Release note

None.

[ti-chi-bot]

[REVIEW NOTIFICATION]

This pull request has been approved by:

• lhy1024
• nolouch

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[nolouch]

/merge

[ti-chi-bot]

@nolouch: It seems you want to merge this PR, I will help you trigger all the tests:

/run-all-tests

You only need to trigger /merge once, and if the CI test fails, you just re-trigger the test that failed and the bot will merge the PR for you after the CI passes.

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[ti-chi-bot]

This pull request has been accepted and is ready to merge.

Commit hash: ec676cb

[ti-chi-bot]

@ti-chi-bot: Your PR was out of date, I have automatically updated it for you.

If the CI test fails, you just re-trigger the test that failed and the bot will merge the PR for you after the CI passes.

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[codecov]

Codecov Report

Merging #7265 (d73b53e) into release-7.5 (7b3611a) will decrease coverage by 0.05%.
The diff coverage is 100.00%.

@@               Coverage Diff               @@
##           release-7.5    #7265      +/-   ##
===============================================
- Coverage        74.60%   74.56%   -0.05%     
===============================================
  Files              442      442              
  Lines            47779    47780       +1     
===============================================
- Hits             35645    35626      -19     
- Misses            8976     8990      +14     
- Partials          3158     3164       +6     

Flag	Coverage Δ
unittests	74.56% <100.00%> (-0.05%)	⬇️

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