feat: secure grpc channels

[RobPasMue]

Description

Including the usage of secure channels upon request

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 unit tests.
• I have reviewed my changes before submitting this pull request.
• I have linked the issue or issues that are solved to the PR if any.
• I have assigned this PR to myself.
• I have added the minimum version decorator to any new backend method implemented.
• I have made sure that the title of my PR follows Conventional commits style (e.g. feat: extrude circle to cylinder)

[jorgepiloto]

Thanks for adding this feature!

[codecov]

Codecov Report

❌ Patch coverage is 25.80645% with 69 lines in your changes missing coverage. Please review.
✅ Project coverage is 92.19%. Comparing base (b9faa09) to head (c478a38).
⚠️ Report is 3 commits behind head on main.

Files with missing lines	Patch %	Lines
...ansys/geometry/core/connection/product_instance.py	5.26%	54 Missing ⚠️
.../ansys/geometry/core/connection/docker_instance.py	18.75%	13 Missing ⚠️
src/ansys/geometry/core/connection/client.py	87.50%	2 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2411      +/-   ##
==========================================
- Coverage   92.69%   92.19%   -0.51%     
==========================================
  Files         169      169              
  Lines       11704    11787      +83     
==========================================
+ Hits        10849    10867      +18     
- Misses        855      920      +65     

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[MaxJPRey]

LGTM.