enhance: [10kcp] Accelerate the loading of collection

[bigsheeper]

Remove unnecessary ListIndex and DescribeCollection RPC call during loading.

issue: #37166, #37630

pr: #37741

[sre-ci-robot]

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 80.62%. Comparing base (0bd2617) to head (8513ed7).
Report is 7 commits behind head on 10kcp.

Additional details and impacted files

@@            Coverage Diff             @@
##            10kcp   #37879      +/-   ##
==========================================
- Coverage   80.63%   80.62%   -0.02%     
==========================================
  Files        1069     1069              
  Lines      166978   166968      -10     
==========================================
- Hits       134643   134616      -27     
- Misses      27930    27944      +14     
- Partials     4405     4408       +3     

Files with missing lines	Coverage Δ
internal/querycoordv2/job/job_load.go	85.71% <100.00%> (-3.73%)	⬇️
internal/querycoordv2/job/job_sync.go	75.55% <100.00%> (ø)
internal/querycoordv2/job/utils.go	83.33% <100.00%> (+1.62%)	⬆️

... and 30 files with indirect coverage changes

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