fix(controller): cache deadlock on delete and re-add cluster (cherry-pick #14780)

[gcp-cherry-pick-bot]

Cherry-picked fix(controller): cache deadlock on delete and re-add cluster (#14780)

Signed-off-by: Nathan Romriell nateromriell@gmail.com

[codecov]

Codecov Report

Patch coverage: 80.35% and project coverage change: +0.11% 🎉

Comparison is base (7852e44) 49.80% compared to head (2179020) 49.92%.
Report is 1 commits behind head on release-2.8.

Additional details and impacted files

@@               Coverage Diff               @@
##           release-2.8   #14798      +/-   ##
===============================================
+ Coverage        49.80%   49.92%   +0.11%     
===============================================
  Files              261      261              
  Lines            44884    44929      +45     
===============================================
+ Hits             22356    22431      +75     
+ Misses           20322    20293      -29     
+ Partials          2206     2205       -1     

Files Changed	Coverage Δ
applicationset/generators/scm_provider.go	43.21% <68.57%> (+9.88%)	⬆️
applicationset/generators/pull_request.go	60.11% <100.00%> (+15.39%)	⬆️
controller/cache/cache.go	27.01% <100.00%> (+1.91%)	⬆️

... and 2 files with indirect coverage changes

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