fix(cli): regression on run_node --help

[jansegre]

Motivation

Doing python -m hathor run_node --help broke in some cases due to a bug in some versions of argparse.

Acceptance Criteria

• Remove all mutually exclusive groups where all arguments have help=SUPRESS, but keep the arguments in the base parser
• Add a test that runs the CLI's help and have a basic sanity check (exit code 0 and at least 80 lines)

Checklist

• If you are requesting a merge into master, confirm this code is production-ready and can be included in future releases as soon as it gets merged

[github-actions]

Bencher Report

Branch	fix/cli-help-regression
Testbed	ubuntu-22.04

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Benchmark	Latency	Benchmark Result minutes (m) (Result Δ%)	Lower Boundary minutes (m) (Limit %)	Upper Boundary minutes (m) (Limit %)
sync-v2 (up to 20000 blocks)	📈 view plot 🚷 view threshold	1.47 (-9.82%)	1.47 (99.80%)	1.80 (81.98%)

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 84.39%. Comparing base (05f1958) to head (314f6ad).
Report is 2 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #1220      +/-   ##
==========================================
+ Coverage   84.36%   84.39%   +0.03%     
==========================================
  Files         320      320              
  Lines       24568    24564       -4     
  Branches     3768     3762       -6     
==========================================
+ Hits        20726    20732       +6     
+ Misses       3097     3091       -6     
+ Partials      745      741       -4     

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