chore: Consume cluster cache deadlock fix from gitops-engine [release-2.6]

[jaideepr97]

This PR just consumes argoproj/gitops-engine#521 from gitops-engine into argo-cd, which addresses #11458

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[alexmt]

we should cherry-pick #13611 instead, to avoid merge conflicts

[codecov]

Codecov Report

Patch and project coverage have no change.

Comparison is base (6f5eaff) 48.55% compared to head (9021f04) 48.55%.

Additional details and impacted files

@@             Coverage Diff              @@
##           release-2.6   #13613   +/-   ##
============================================
  Coverage        48.55%   48.55%           
============================================
  Files              246      246           
  Lines            41777    41777           
============================================
  Hits             20285    20285           
  Misses           19431    19431           
  Partials          2061     2061           

see 1 file with indirect coverage changes

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