fix: [Pick] Skip filling segmentID in indexBuildCh to prevent flush blocked

[xiaocai2333]

issue: #30580
master pr: #30747

[mergify]

@xiaocai2333

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[mergify]

@xiaocai2333 E2e jenkins job failed, comment /run-cpu-e2e can trigger the job again.

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[codecov]

Codecov Report

Attention: 1 lines in your changes are missing coverage. Please review.

Comparison is base (31f33f6) 82.11% compared to head (25c0c51) 82.12%.
Report is 1 commits behind head on 2.3.

Additional details and impacted files

@@           Coverage Diff           @@
##              2.3   #30749   +/-   ##
=======================================
  Coverage   82.11%   82.12%           
=======================================
  Files         841      841           
  Lines      121390   121389    -1     
=======================================
+ Hits        99677    99685    +8     
+ Misses      18468    18457   -11     
- Partials     3245     3247    +2     

Files	Coverage Δ
internal/datacoord/meta.go	88.77% <ø> (-0.11%)	⬇️
internal/datacoord/services.go	85.32% <ø> (-0.54%)	⬇️
internal/datacoord/server.go	70.30% <66.66%> (-0.09%)	⬇️

... and 23 files with indirect coverage changes

[mergify]

@xiaocai2333 E2e jenkins job failed, comment /run-cpu-e2e can trigger the job again.

[xiaocai2333]

/run-cpu-e2e

[czs007]

/approve
/lgtm

[sre-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: czs007, xiaocai2333

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