REFACTOR: Improve readability vulnerability handling

[SMoraisAnsys]

Description

Improve readability and vulnerability handling.

Issue linked

Contributes to #5504 and #4666

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[codecov]

Codecov Report

Attention: Patch coverage is 84.00000% with 12 lines in your changes missing coverage. Please review.

Project coverage is 85.27%. Comparing base (a457727) to head (ad0fbbd).
Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #5579      +/-   ##
==========================================
- Coverage   85.27%   85.27%   -0.01%     
==========================================
  Files         152      152              
  Lines       60990    60937      -53     
==========================================
- Hits        52011    51964      -47     
+ Misses       8979     8973       -6     

[SMoraisAnsys]

@Samuelopez-ansys @gmalinve If one of you has some time, please have a look at this PR.
Most valuable changes are located in spisim.py, modeler_3d.py, rpyc_services.py and touchstone_parser.py

[gmalinve]

I left some comments that could improve the readability of some parts of code.
Overall LGTM!

[Samuelopez-ansys]

@SMoraisAnsys Could we merge this PR?

[SMoraisAnsys]

par_description

Let me perform Giulia's changes and it will be okay :)

[Samuelopez-ansys]

LGTM