fix: revert #25294

[santi1s]

Reverts #25294, restoring the fix originally introduced in #24197.

#25294 reverted #24197 (CRD array element ignoreDifferences support) due to a nil pointer dereference (#25199). That underlying issue has since been resolved upstream per the
discussion in #17694.

Closes #23283

Checklist:

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[codecov]

Bundle Report

Bundle size has no change ✅

[codecov]

Codecov Report

❌ Patch coverage is 57.50000% with 17 lines in your changes missing coverage. Please review.
⚠️ Please upload report for BASE (master@f6ade14). Learn more about missing BASE report.

Files with missing lines	Patch %	Lines
controller/sync.go	57.50%	10 Missing and 7 partials ⚠️

Additional details and impacted files

@@            Coverage Diff            @@
##             master   #28276   +/-   ##
=========================================
  Coverage          ?   64.84%           
=========================================
  Files             ?      425           
  Lines             ?    59118           
  Branches          ?        0           
=========================================
  Hits              ?    38333           
  Misses            ?    17222           
  Partials          ?     3563           

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