Add an option to enable/disable vector field clustering key

[wayblink]

#30633

[mergify]

@wayblink

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[mergify]

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[czs007]

/approve
/lgtm

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[codecov]

Codecov Report

Attention: Patch coverage is 87.80488% with 5 lines in your changes missing coverage. Please review.

Project coverage is 81.02%. Comparing base (fb870d2) to head (6eaf4d1).
Report is 28 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master   #34097      +/-   ##
==========================================
+ Coverage   81.00%   81.02%   +0.01%     
==========================================
  Files        1067     1077      +10     
  Lines      136726   137172     +446     
==========================================
+ Hits       110759   111139     +380     
- Misses      21754    21815      +61     
- Partials     4213     4218       +5     

Files	Coverage Δ
internal/proxy/task.go	87.71% <100.00%> (+0.18%)	⬆️
pkg/util/merr/errors.go	86.95% <ø> (ø)
pkg/util/merr/utils.go	83.15% <100.00%> (+0.15%)	⬆️
pkg/util/paramtable/component_param.go	98.48% <100.00%> (+<0.01%)	⬆️
internal/util/clustering/clustering.go	62.00% <16.66%> (-4.67%)	⬇️

... and 185 files with indirect coverage changes