fix: New kube applier for server side diff dry run with refactoring (#21488)

[andrii-korotkov-verkada]

Cherry-picks #21749 to 2.14 with necessary modifications.

Checklist:

• Either (a) I've created an enhancement proposal and discussed it with the community, (b) this is a bug fix, or (c) this does not need to be in the release notes.
• The title of the PR states what changed and the related issues number (used for the release note).
• The title of the PR conforms to the Toolchain Guide
• I've included "Closes [ISSUE #]" or "Fixes [ISSUE #]" in the description to automatically close the associated issue.
• I've updated both the CLI and UI to expose my feature, or I plan to submit a second PR with them.
• Does this PR require documentation updates?
• I've updated documentation as required by this PR.
• I have signed off all my commits as required by DCO
• I have written unit and/or e2e tests for my change. PRs without these are unlikely to be merged.
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• Optional. For bug fixes, I've indicated what older releases this fix should be cherry-picked into (this may or may not happen depending on risk/complexity).

[codecov]

Codecov Report

Attention: Patch coverage is 33.33333% with 16 lines in your changes missing coverage. Please review.

Project coverage is 55.17%. Comparing base (ad27246) to head (09f9569).
Report is 1 commits behind head on release-2.14.

Files with missing lines	Patch %	Lines
util/kube/kubectl.go	10.00%	9 Missing ⚠️
controller/state.go	25.00%	3 Missing ⚠️
cmd/argocd/commands/admin/app.go	71.42%	1 Missing and 1 partial ⚠️
controller/sync.go	0.00%	2 Missing ⚠️

Additional details and impacted files

@@               Coverage Diff                @@
##           release-2.14   #21819      +/-   ##
================================================
- Coverage         55.19%   55.17%   -0.03%     
================================================
  Files               338      338              
  Lines             57181    57195      +14     
================================================
- Hits              31563    31555       -8     
- Misses            22924    22937      +13     
- Partials           2694     2703       +9     

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[leoluz]

Please revert all changes made in the manifests folder. This is a known issue with cherry-picks.

[andrii-korotkov-verkada]

Done, hope CI for that is non-blocking.

[leoluz]

LGTM