enhance: refine logs of cgo pool

[jaime0815]

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[sre-ci-robot]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: jaime0815
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[codecov]

Codecov Report

Attention: Patch coverage is 75.00000% with 1 lines in your changes are missing coverage. Please review.

Project coverage is 82.16%. Comparing base (303470f) to head (0e73329).
Report is 42 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master   #33373      +/-   ##
==========================================
- Coverage   82.19%   82.16%   -0.03%     
==========================================
  Files        1009     1012       +3     
  Lines      128849   128854       +5     
==========================================
- Hits       105901   105868      -33     
- Misses      18951    19016      +65     
+ Partials     3997     3970      -27     

Files	Coverage Δ
internal/querynodev2/segments/pool.go	97.36% <100.00%> (+0.10%)	⬆️
internal/querynodev2/segments/segment.go	67.14% <0.00%> (ø)

... and 95 files with indirect coverage changes