CI: improve dump/load test

[zhoucheng361]

No description provided.

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 10 lines in your changes are missing coverage. Please review.

Project coverage is 55.62%. Comparing base (c8e8296) to head (688afdf).
Report is 4 commits behind head on main.

❗ Current head 688afdf differs from pull request most recent head 64af550. Consider uploading reports for the commit 64af550 to get more accurate results

Files	Patch %	Lines
pkg/meta/tkv.go	0.00%	9 Missing and 1 partial ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #4568      +/-   ##
==========================================
+ Coverage   55.57%   55.62%   +0.05%     
==========================================
  Files         159      158       -1     
  Lines       42940    43076     +136     
==========================================
+ Hits        23862    23960      +98     
- Misses      16422    16454      +32     
- Partials     2656     2662       +6     

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