feat(cli): add host override for any number of hosts

[nandor-magyar]

I wanted to use our CLI to set up everything, but not use the default hardcoded localhost as host header. Unfortunately, that was not possible. Here is the implementation to do so, with some usage guidelines included in the Makefile.

[polaroi8d]

Nice feature, LGTM.

[codecov-commenter]

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Codecov Report

Attention: Patch coverage is 23.07692% with 20 lines in your changes missing coverage. Please review.

Project coverage is 24.40%. Comparing base (c592368) to head (3d301d6).
Report is 8 commits behind head on develop.

Files with missing lines	Patch %	Lines
golang/pkg/cli/container_defaults.go	35.29%	11 Missing ⚠️
golang/pkg/cli/cli.go	0.00%	9 Missing ⚠️

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Additional details and impacted files

@@             Coverage Diff             @@
##           develop    #1014      +/-   ##
===========================================
+ Coverage    24.34%   24.40%   +0.06%     
===========================================
  Files           77       77              
  Lines         8104     8124      +20     
===========================================
+ Hits          1973     1983      +10     
- Misses        5972     5982      +10     
  Partials       159      159              

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