enhance: use skip index to optimize search sorted pks

[sunby]

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[mergify]

@sunby E2e jenkins job failed, comment /run-cpu-e2e can trigger the job again.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 81.14%. Comparing base (aceb972) to head (99ebf8b).
Report is 13 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master   #39153      +/-   ##
==========================================
- Coverage   81.18%   81.14%   -0.04%     
==========================================
  Files        1390     1395       +5     
  Lines      196755   197278     +523     
==========================================
+ Hits       159732   160090     +358     
- Misses      31442    31566     +124     
- Partials     5581     5622      +41     

Components	Coverage Δ
Client	79.53% <ø> (ø)
Core	69.64% <100.00%> (+0.10%)	⬆️
Go	83.08% <ø> (-0.06%)	⬇️

Files with missing lines	Coverage Δ
...rnal/core/src/segcore/ChunkedSegmentSealedImpl.cpp	22.91% <100.00%> (+0.07%)	⬆️

... and 100 files with indirect coverage changes