fix: correct post-delete finalizer removal when cluster not found (cherry-pick #24415 for 3.0)

[argo-cd-cherry-pick-bot]

Cherry-picked fix: correct post-delete finalizer removal when cluster not found (#24415)

Signed-off-by: Pavel Aborilov [email protected]

[codecov]

Codecov Report

❌ Patch coverage is 16.66667% with 5 lines in your changes missing coverage. Please review.
✅ Project coverage is 55.97%. Comparing base (2a0282d) to head (244c086).
⚠️ Report is 2 commits behind head on release-3.0.

Files with missing lines	Patch %	Lines
pkg/apis/application/v1alpha1/types.go	0.00%	5 Missing ⚠️

Additional details and impacted files

@@               Coverage Diff               @@
##           release-3.0   #24589      +/-   ##
===============================================
- Coverage        56.01%   55.97%   -0.05%     
===============================================
  Files              345      345              
  Lines            57480    57485       +5     
===============================================
- Hits             32198    32177      -21     
- Misses           22621    22642      +21     
- Partials          2661     2666       +5     

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