Align gRPC server status code to span status code

[FaranIdo]

Following an update to OTEL spec, align gRPC server instrumentation to the new span status code

https://github.com/open-telemetry/opentelemetry-specification/blob/f5a269fd3de948656c085c25d83342c78c8dc99c/specification/trace/semantic_conventions/rpc.md#grpc-status

Pull Request in the OTEL spec: open-telemetry/opentelemetry-specification#3333

[linux-foundation-easycla]

The committers listed above are authorized under a signed CLA.

• ✅ login: FaranIdo (3ca58f3)

[dmathieu]

Could you add a changelog entry, as well as tests?

[FaranIdo]

@dmathieu Yes, on it, will add it later

[FaranIdo]

Hi @dmathieu, I have added tests and a changelog entry for the changes I made.
Additionally, I noticed that there were no tests for the StreamServerInterceptor flow, so I went ahead and added them.

[codecov]

Codecov Report

Merging #3685 (d4ab9e5) into main (1870062) will increase coverage by 0.1%.
The diff coverage is 100.0%.

Additional details and impacted files

@@           Coverage Diff           @@
##            main   #3685     +/-   ##
=======================================
+ Coverage   70.0%   70.1%   +0.1%     
=======================================
  Files        147     147             
  Lines       6966    6973      +7     
=======================================
+ Hits        4880    4892     +12     
+ Misses      1961    1958      -3     
+ Partials     125     123      -2     

Impacted Files	Coverage Δ
...ion/google.golang.org/grpc/otelgrpc/interceptor.go	85.1% <100.0%> (+1.7%)	⬆️

[dmathieu]

There still seems to be CI issues.

[FaranIdo]

@pellared fixed your comments and refactors the stream + unary tests to use shared assert methods

[FaranIdo]

@dashpole @pellared @dmathieu - I just wanted to check in and see if there are any additional comments or changes needed on the pull request, or if we can go ahead and proceed with merging it.

[FaranIdo]

@pellared @dmathieu @dashpole - I fixed the CR comments.

[FaranIdo]

@MrAlias added all gRPC statuses.
I also did small refactor in the test by removing the name + grpcErr from the serverChecks variable. Now it is much more simple - just grpcCode, span status + span description.

[pellared]

Looks great. Thank you for your contribution 👍