feat: Add json+patch support via templateJSONPatch

[gregsidelinger]

Fixes: #16800

Adds support for json+patches to Applicaitonsets as a way to deal with templatePatch's limitations when dealing with arrays.

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 Title of the PR
• 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.
• My build is green (troubleshooting builds).
• My new feature complies with the feature status guidelines.
• I have added a brief description of why this PR is necessary and/or what this PR solves.
• Optional. My organization is added to USERS.md.
• 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).

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[codecov]

Codecov Report

❌ Patch coverage is 82.35294% with 6 lines in your changes missing coverage. Please review.
✅ Project coverage is 62.84%. Comparing base (9851b84) to head (25e3680).
⚠️ Report is 1 commits behind head on master.

Files with missing lines	Patch %	Lines
applicationset/controllers/template/patch.go	78.94%	2 Missing and 2 partials ⚠️
applicationset/controllers/template/template.go	86.66%	1 Missing and 1 partial ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master   #24934      +/-   ##
==========================================
+ Coverage   62.82%   62.84%   +0.02%     
==========================================
  Files         412      412              
  Lines       55635    55669      +34     
==========================================
+ Hits        34951    34986      +35     
+ Misses      17352    17348       -4     
- Partials     3332     3335       +3     

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