feat(appset): Provide additional parameter files to git generator - Fixes #20593

[OpenGuidou]

Fixes #20593

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.
• 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).

[bunnyshell]

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[codecov]

Codecov Report

Attention: Patch coverage is 88.34951% with 12 lines in your changes missing coverage. Please review.

Project coverage is 55.13%. Comparing base (36ef563) to head (f8f5a0f).

Files with missing lines	Patch %	Lines
applicationset/generators/git.go	86.51%	8 Missing and 4 partials ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master   #20653      +/-   ##
==========================================
+ Coverage   55.10%   55.13%   +0.03%     
==========================================
  Files         324      324              
  Lines       55239    55319      +80     
==========================================
+ Hits        30439    30500      +61     
- Misses      22180    22198      +18     
- Partials     2620     2621       +1     

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