[#11158] Refactor GrpcDataSender

[emeroad]

No description provided.

[codecov]

Codecov Report

Attention: Patch coverage is 60.52632% with 15 lines in your changes missing coverage. Please review.

Project coverage is 37.00%. Comparing base (221ced9) to head (5bef241).

Files	Patch %	Lines
...t/profiler/sender/grpc/MetadataGrpcDataSender.java	50.00%	7 Missing and 1 partial ⚠️
...ler/sender/grpc/MetadataGrpcHedgingDataSender.java	66.66%	5 Missing ⚠️
.../provider/grpc/MetadataGrpcDataSenderProvider.java	50.00%	1 Missing ⚠️
...filer/sender/grpc/RetryResponseStreamObserver.java	80.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff            @@
##             master   #11204   +/-   ##
=========================================
  Coverage     37.00%   37.00%           
- Complexity    12043    12048    +5     
=========================================
  Files          3979     3979           
  Lines         97869    97881   +12     
  Branches      10415    10416    +1     
=========================================
+ Hits          36215    36223    +8     
- Misses        58678    58684    +6     
+ Partials       2976     2974    -2     

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