fix: fix how gRPC transport security is determined

[ToanBarcelona1998]

Description

Checklist

• Targeted PR against correct branch.
• Linked to Github issue with discussion and accepted design OR link to spec that describes this work.
• Wrote unit tests.
• Run make format.
• Run make lint.
• Updated the documentation.
• Added an entry to the CHANGELOG.md file.
• Re-reviewed Files changed in the Github PR explorer and added meaningful comments.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (b8385cc) 76.31% compared to head (4b59220) 77.63%.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #201      +/-   ##
==========================================
+ Coverage   76.31%   77.63%   +1.31%     
==========================================
  Files          26       26              
  Lines         684      684              
==========================================
+ Hits          522      531       +9     
+ Misses        162      153       -9     

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