enhance: Refine clustering compaction log

[xiaocai2333]

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 81.04%. Comparing base (61f73d5) to head (29a611a).
Report is 2 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master   #38100      +/-   ##
==========================================
- Coverage   81.06%   81.04%   -0.02%     
==========================================
  Files        1369     1369              
  Lines      190968   190971       +3     
==========================================
- Hits       154812   154780      -32     
- Misses      30661    30687      +26     
- Partials     5495     5504       +9     

Components	Coverage Δ
Client	73.67% <ø> (ø)
Core	68.87% <ø> (ø)
Go	83.18% <100.00%> (-0.03%)	⬇️

Files with missing lines	Coverage Δ
internal/datacoord/compaction_task_clustering.go	77.54% <100.00%> (+0.11%)	⬆️

... and 26 files with indirect coverage changes

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