feat: add prompting to confirm deletion of gpg public key

[pasha-codefresh]

It uses ability to configure prompts behavior inside configuration or flags. Default behavior is no promts, so we actually not affecting any existing behavior, but users can define promts to be enabled for their CLI
Details here:

#19528

1. Default behavior

2. Prompts enabled

[bunnyshell]

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[ishitasequeira]

The change looks good!!

[codecov]

Codecov Report

Attention: Patch coverage is 14.28571% with 12 lines in your changes missing coverage. Please review.

Please upload report for BASE (master@a0b6943). Learn more about missing BASE report.
Report is 4 commits behind head on master.

Files with missing lines	Patch %	Lines
cmd/argocd/commands/gpg.go	0.00%	12 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff            @@
##             master   #20539   +/-   ##
=========================================
  Coverage          ?   55.19%           
=========================================
  Files             ?      324           
  Lines             ?    55088           
  Branches          ?        0           
=========================================
  Hits              ?    30408           
  Misses            ?    22070           
  Partials          ?     2610           

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