fix: Fix update loading collection's load config doesn't work

[weiliu1031]

issue: #38594

[chyezh]

/lgtm

[codecov]

Codecov Report

Attention: Patch coverage is 50.00000% with 1 line in your changes missing coverage. Please review.

Project coverage is 81.00%. Comparing base (8fcb33c) to head (1acd8a8).
Report is 33 commits behind head on master.

Files with missing lines	Patch %	Lines
internal/querycoordv2/services.go	50.00%	0 Missing and 1 partial ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##           master   #38595   +/-   ##
=======================================
  Coverage   81.00%   81.00%           
=======================================
  Files        1379     1379           
  Lines      194495   194495           
=======================================
+ Hits       157546   157548    +2     
+ Misses      31393    31384    -9     
- Partials     5556     5563    +7     

Components	Coverage Δ
Client	75.88% <ø> (ø)
Core	69.35% <ø> (+0.01%)	⬆️
Go	83.03% <50.00%> (-0.01%)	⬇️

Files with missing lines	Coverage Δ
internal/querycoordv2/services.go	85.94% <50.00%> (-0.64%)	⬇️

... and 30 files with indirect coverage changes

[chyezh]

/lgtm

[tedxu]

/approve

[sre-ci-robot]

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