fix: [2.4] update check for sparse hnsw index

[zhengbuqian]

issue: #29419
pr: #33713

[foxspy]

/lgtm

[sre-ci-robot]

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[mergify]

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

[foxspy]

/run-cpu-e2e

[mergify]

@zhengbuqian ut workflow job failed, comment rerun ut can trigger the job again.

[sre-ci-robot]

New changes are detected. LGTM label has been removed.

[mergify]

@zhengbuqian 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 82.14%. Comparing base (26db471) to head (d6d1480).
Report is 2 commits behind head on 2.4.

Additional details and impacted files

@@            Coverage Diff             @@
##              2.4   #33714      +/-   ##
==========================================
+ Coverage   82.12%   82.14%   +0.01%     
==========================================
  Files        1010     1010              
  Lines      128613   128635      +22     
==========================================
+ Hits       105629   105669      +40     
+ Misses      19015    18995      -20     
- Partials     3969     3971       +2     

Files	Coverage Δ
internal/proxy/task_index.go	80.92% <100.00%> (+0.16%)	⬆️
pkg/common/common.go	73.33% <ø> (ø)
pkg/util/indexparamcheck/base_checker.go	95.45% <100.00%> (+4.54%)	⬆️

... and 31 files with indirect coverage changes