[chore] Add e2e tests using grpc and generated protobuf stubs for pdata files

[bogdandrutu]

No description provided.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 92.29%. Comparing base (ab33d4b) to head (104ea2e).

Additional details and impacted files

@@            Coverage Diff             @@
##             main   #14087      +/-   ##
==========================================
+ Coverage   92.27%   92.29%   +0.02%     
==========================================
  Files         657      657              
  Lines       41100    41100              
==========================================
+ Hits        37926    37935       +9     
+ Misses       2173     2160      -13     
- Partials     1001     1005       +4     

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[dmathieu]

This is a very large that seems to do more than just add unit tests (it switches proto-go from the slim package to the standard one for one). Should that be split into smaller PRs?

[bogdandrutu]

it switches proto-go from the slim package to the standard one for one

this is required because the slim version does not have the grpc generated code, so I cannot have e2e tests without it.

EDIT: Also, this is only a test dependency.