ROX-33133: Remove hardcoded key-exchange in gRPC

[vladbologa]

Description

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Checklist

• Investigated and inspected CI test results
• Updated documentation accordingly

Automated testing

• Added unit tests
• Added integration tests
• Added regression tests

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[Molter73]

I'm a bit concerned about carrying a patch for this ourselves. I can already tell the line has moved on the master branch of grpc, so when we decide to update the dependency, this patch will need to be regenerated.

Is there any way we could directly upstream something instead of working around it ourselves?

[vladbologa]

I'm just trying to get ML-KEM to work for now.

As for the upstreaming, I don't know. They had a ticket and they didn't fix it. It would be best to fix it upstream, but I'm not sure that can be done in time for 4.11.

[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 27.38%. Comparing base (74649d8) to head (7514157).
✅ All tests successful. No failed tests found.

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #2991   +/-   ##
=======================================
  Coverage   27.38%   27.38%           
=======================================
  Files          95       95           
  Lines        5427     5427           
  Branches     2548     2548           
=======================================
  Hits         1486     1486           
  Misses       3214     3214           
  Partials      727      727           

Flag	Coverage Δ
collector-unit-tests	27.38% <ø> (ø)

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[vladbologa]

/retest collector-on-push