feat(cli): Support comma-separated list arguments

[gfieni]

No description provided.

[codecov]

Codecov Report

❌ Patch coverage is 64.28571% with 5 lines in your changes missing coverage. Please review.
✅ Project coverage is 72.01%. Comparing base (07bdb08) to head (3fb044e).

Files with missing lines	Patch %	Lines
src/powerapi/cli/_utils.py	50.00%	3 Missing ⚠️
src/powerapi/cli/common_cli_parsing_manager.py	0.00%	1 Missing ⚠️
src/powerapi/cli/config_parser.py	66.66%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #844      +/-   ##
==========================================
- Coverage   72.08%   72.01%   -0.07%     
==========================================
  Files          90       90              
  Lines        3009     3002       -7     
==========================================
- Hits         2169     2162       -7     
  Misses        840      840              

Files with missing lines	Coverage Δ
src/powerapi/cli/config_validator.py	62.31% <100.00%> (-2.07%)	⬇️
src/powerapi/cli/generator.py	89.40% <100.00%> (+0.26%)	⬆️
src/powerapi/cli/parsing_manager.py	83.33% <100.00%> (ø)
src/powerapi/cli/common_cli_parsing_manager.py	0.00% <0.00%> (ø)
src/powerapi/cli/config_parser.py	91.24% <66.66%> (+0.23%)	⬆️
src/powerapi/cli/_utils.py	82.14% <50.00%> (-9.53%)	⬇️

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