enhance: Use batch to speed up list collections from meta kv

[weiliu1031]

issue: #36228
pr: #37742

[codecov]

Codecov Report

Attention: Patch coverage is 88.46154% with 9 lines in your changes missing coverage. Please review.

Project coverage is 72.27%. Comparing base (13f83df) to head (a2bdac5).
Report is 3 commits behind head on 2.4.

Files with missing lines	Patch %	Lines
internal/metastore/kv/rootcoord/kv_catalog.go	88.46%	6 Missing and 3 partials ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##              2.4   #37752      +/-   ##
==========================================
- Coverage   72.28%   72.27%   -0.01%     
==========================================
  Files        1069     1069              
  Lines      166874   166943      +69     
==========================================
+ Hits       120619   120663      +44     
- Misses      41853    41873      +20     
- Partials     4402     4407       +5     

Files with missing lines	Coverage Δ
internal/metastore/kv/rootcoord/kv_catalog.go	82.09% <88.46%> (-0.84%)	⬇️

... and 38 files with indirect coverage changes

[czs007]

/approve
/lgtm

[sre-ci-robot]

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