feat: add ability to use shallow clone for repositories

[alexmt]

Part of #11198

Changes

PR implement ability to use shallow clone for repositories:

• adds repo level settings shallowClone=true
• when setting is set the repo server fetch required commits one by one instead of fetching whole repository history.

Performance testing:

TBD

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[codecov]

Codecov Report

❌ Patch coverage is 95.00000% with 2 lines in your changes missing coverage. Please review.
✅ Project coverage is 60.78%. Comparing base (95b191d) to head (25075a6).

Files with missing lines	Patch %	Lines
cmd/argocd/commands/repo.go	0.00%	1 Missing ⚠️
cmd/util/repo.go	0.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master   #24931      +/-   ##
==========================================
- Coverage   60.79%   60.78%   -0.02%     
==========================================
  Files         351      351              
  Lines       60439    60452      +13     
==========================================
+ Hits        36745    36746       +1     
- Misses      20772    20785      +13     
+ Partials     2922     2921       -1     

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