[Feature] Add --insecure-skip-tls-verify when executing kubecm add

[mayooot]

Description

Add --insecure-skip-tls-verify when executing kubecm add

Related Issue

#1041

Type of Change

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• Documentation update (changes only affecting documentation)

Checklist

• I have tested my changes locally and ensured they are functioning properly. Please run the make build and make test commands.
• I have added/updated unit or e2e tests to cover my changes.
• I have updated the relevant documentation. If you change commands or arguments, run make doc-gen to generate new documentation.

[the-label-bot]

The Label Bot has predicted the following:

Category	Value	Confidence	Applied Label

[codecov]

Codecov Report

Attention: Patch coverage is 46.42857% with 15 lines in your changes missing coverage. Please review.

Project coverage is 20.26%. Comparing base (00e6c89) to head (ac71185).

Files with missing lines	Patch %	Lines
cmd/cloud_add.go	0.00%	10 Missing ⚠️
cmd/add.go	72.22%	5 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #1045      +/-   ##
==========================================
+ Coverage   20.03%   20.26%   +0.23%     
==========================================
  Files          21       21              
  Lines        2601     2615      +14     
==========================================
+ Hits          521      530       +9     
- Misses       2033     2038       +5     
  Partials       47       47              

Flag	Coverage Δ
unittests	20.26% <46.42%> (+0.23%)	⬆️

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