fix: unstable ut in leader_vew_manager.go file

[jaime0815]

issue: #38672

[mergify]

@jaime0815 Please associate the related issue to the body of your Pull Request. (eg. “issue: #”)

[chyezh]

/lgtm

[sre-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

Approval requirements bypassed by manually added approval.

This pull-request has been approved by: jaime0815

The full list of commands accepted by this bot can be found here.

The pull request process is described here

Needs approval from an approver in each of these files:

• internal/querycoordv2/meta/OWNERS

Approvers can indicate their approval by writing /approve in a comment
Approvers can cancel approval by writing /approve cancel in a comment

[mergify]

@jaime0815 E2e jenkins job failed, comment /run-cpu-e2e can trigger the job again.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 81.15%. Comparing base (826b726) to head (125d382).
Report is 3 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master   #39161      +/-   ##
==========================================
- Coverage   81.16%   81.15%   -0.01%     
==========================================
  Files        1395     1395              
  Lines      197277   197276       -1     
==========================================
- Hits       160124   160105      -19     
- Misses      31539    31558      +19     
+ Partials     5614     5613       -1     

Components	Coverage Δ
Client	79.53% <ø> (ø)
Core	69.64% <ø> (ø)
Go	83.09% <100.00%> (-0.02%)	⬇️

Files with missing lines	Coverage Δ
internal/querycoordv2/meta/leader_view_manager.go	93.57% <100.00%> (-0.03%)	⬇️

... and 39 files with indirect coverage changes

[jaime0815]

/run-cpu-e2e

[mergify]

@jaime0815 E2e jenkins job failed, comment /run-cpu-e2e can trigger the job again.