[Access] Refactor grpc server setup for clarity

[peterargue]

The grpc server interceptors were defined in different places and lacked explanation. move them all to grpcserver module and improve comments

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 22.97297% with 57 lines in your changes missing coverage. Please review.

Project coverage is 41.23%. Comparing base (3561e2b) to head (dd0d31b).

Files with missing lines	Patch %	Lines
module/grpcserver/server_builder.go	0.00%	13 Missing ⚠️
module/grpcserver/interceptor_logging.go	0.00%	10 Missing ⚠️
module/grpcserver/interceptor_context.go	0.00%	9 Missing ⚠️
module/grpcserver/server.go	0.00%	7 Missing ⚠️
engine/access/rpc/engine_builder.go	66.66%	6 Missing ⚠️
module/grpcserver/interceptor_ratelimit.go	0.00%	6 Missing ⚠️
engine/access/state_stream/backend/engine.go	0.00%	3 Missing ⚠️
engine/access/rpc/http_server.go	75.00%	0 Missing and 1 partial ⚠️
engine/collection/rpc/engine.go	0.00%	1 Missing ⚠️
engine/execution/rpc/engine.go	50.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #7094      +/-   ##
==========================================
+ Coverage   41.22%   41.23%   +0.01%     
==========================================
  Files        2153     2154       +1     
  Lines      189278   189265      -13     
==========================================
+ Hits        78029    78049      +20     
+ Misses     104745   104712      -33     
  Partials     6504     6504              

Flag	Coverage Δ
unittests	41.23% <22.97%> (+0.01%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.