fix: [cp24]Change memoryCheck write lock to read lock

[XuanYang-cn]

pr: #37525

[mergify]

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

[mergify]

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

[codecov]

Codecov Report

Attention: Patch coverage is 76.92308% with 3 lines in your changes missing coverage. Please review.

Project coverage is 77.97%. Comparing base (c50cb8d) to head (37ff874).
Report is 1 commits behind head on 2.4.

Files with missing lines	Patch %	Lines
internal/datanode/writebuffer/manager.go	62.50%	2 Missing and 1 partial ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##              2.4   #37526      +/-   ##
==========================================
+ Coverage   72.25%   77.97%   +5.71%     
==========================================
  Files        1069     1061       -8     
  Lines      166881   165748    -1133     
==========================================
+ Hits       120588   129250    +8662     
+ Misses      41878    32084    -9794     
+ Partials     4415     4414       -1     

Files with missing lines	Coverage Δ
internal/datacoord/services.go	83.74% <100.00%> (-1.51%)	⬇️
internal/datanode/syncmgr/task.go	97.98% <100.00%> (ø)
internal/datanode/writebuffer/manager.go	89.14% <62.50%> (-4.94%)	⬇️

... and 401 files with indirect coverage changes

[congqixia]

/lgtm

[sre-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: congqixia, XuanYang-cn

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