enhance: [2.4] Remove unnecessary clone in SetState

[bigsheeper]

issue: #37637

pr: #37697

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 80.62%. Comparing base (cdf703a) to head (969eb45).
Report is 13 commits behind head on 2.4.

Additional details and impacted files

@@            Coverage Diff             @@
##              2.4   #37736      +/-   ##
==========================================
- Coverage   80.65%   80.62%   -0.03%     
==========================================
  Files        1069     1069              
  Lines      166900   166896       -4     
==========================================
- Hits       134605   134564      -41     
- Misses      27902    27921      +19     
- Partials     4393     4411      +18     

Files with missing lines	Coverage Δ
internal/datacoord/meta.go	89.45% <100.00%> (ø)
internal/datacoord/segment_info.go	84.72% <ø> (-1.58%)	⬇️

... and 35 files with indirect coverage changes

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[congqixia]

/lgtm

[sre-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

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