fix: fix l0 compaction may miss some sealed segments

[sunby]

issue: #33955

[XuanYang-cn]

/lgtm
@sunby Also needed on 2.4 branch

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 80.88%. Comparing base (5fac2fa) to head (f4b2b85).
Report is 24 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master   #33980      +/-   ##
==========================================
- Coverage   80.89%   80.88%   -0.02%     
==========================================
  Files        1063     1064       +1     
  Lines      136139   136243     +104     
==========================================
+ Hits       110136   110203      +67     
- Misses      21817    21838      +21     
- Partials     4186     4202      +16     

Files	Coverage Δ
internal/datacoord/compaction_task_l0.go	61.08% <100.00%> (ø)

... and 16 files with indirect coverage changes

[congqixia]

/lgtm

[sre-ci-robot]

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