DOCS: Add log and nosec in checked subprocess calls

[SMoraisAnsys]

Description

Just checked the files used to be executed as python script to install things through AEDT.
Adding a log message when using a specific environment variable and # nosec on subprocess calls otherwise.

Issue linked

#5504

Checklist

• I have tested my changes locally.
• I have added necessary documentation or updated existing documentation.
• I have followed the coding style guidelines of this project.
• I have added appropriate tests (unit, integration, system).
• I have reviewed my changes before submitting this pull request.
• I have linked the issue or issues that are solved by the PR if any.
• I have agreed with the Contributor License Agreement (CLA).

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[MaxJPRey]

LGTM.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 85.05%. Comparing base (fa1643f) to head (2503f2a).
Report is 3 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #6001      +/-   ##
==========================================
- Coverage   85.06%   85.05%   -0.01%     
==========================================
  Files         165      165              
  Lines       62906    62906              
==========================================
- Hits        53510    53504       -6     
- Misses       9396     9402       +6     

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