allow extra spawner arguments to not declare every argument in launch utils (backport #1505)

[mergify]

This PR allows the users to parser extra spawner arguments without having to redeclare everything again in the launch utils

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This is an automatic backport of pull request #1505 done by Mergify.

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 2 lines in your changes missing coverage. Please review.

Project coverage is 62.21%. Comparing base (c912d92) to head (94360ed).
Report is 1 commits behind head on iron.

Files with missing lines	Patch %	Lines
...troller_manager/controller_manager/launch_utils.py	0.00%	2 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             iron    #1793      +/-   ##
==========================================
- Coverage   62.22%   62.21%   -0.02%     
==========================================
  Files         112      112              
  Lines       12298    12300       +2     
  Branches     8604     8602       -2     
==========================================
  Hits         7653     7653              
- Misses        878      880       +2     
  Partials     3767     3767              

Flag	Coverage Δ
unittests	62.21% <0.00%> (-0.02%)	⬇️

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Files with missing lines	Coverage Δ
...troller_manager/controller_manager/launch_utils.py	0.00% <0.00%> (ø)