[CI] Add GRPC in maintainer CI

[marcalff]

Fixes # (issue)

Changes

Please provide a brief description of the changes here.

• Use grpc in maintainer CI : WITH_OTLP_GRPC=ON
• Fixed build warnings in grpc exporter
• Fixed remaining include-what-you-use warnings

For significant contributions please make sure you have completed the following items:

• CHANGELOG.md updated for non-trivial changes
• Unit tests have been added
• Changes in public API reviewed

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 87.78%. Comparing base (25f7a13) to head (d6bbd4a).
Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #3248   +/-   ##
=======================================
  Coverage   87.78%   87.78%           
=======================================
  Files         198      198           
  Lines        6308     6308           
=======================================
  Hits         5537     5537           
  Misses        771      771           

Files with missing lines	Coverage Δ
...lude/opentelemetry/sdk/common/global_log_handler.h	46.16% <ø> (ø)
...ude/opentelemetry/sdk/resource/resource_detector.h	100.00% <ø> (ø)

[marcalff]

@owent

Please check the following code:

async_interface_base *async() override { return &async_interface_; }
async_interface_base *experimental_async() { return &async_interface_; }

I could not figure out how to adjust this for grpc 1.33 or grpc 1.39.

I suspect the following logic:

// Some old toolchains can only use gRPC 1.33 and it's experimental.
#  if defined(GRPC_CPP_VERSION_MAJOR) && \
      (GRPC_CPP_VERSION_MAJOR * 1000 + GRPC_CPP_VERSION_MINOR) >= 1039

to not work as intended,
given how symbol GRPC_CPP_VERSION_MAJOR was only added in grpc version 1.51 by this commit:

commit 8696d49e23490d7f658c2fe531daebfcceaecf15
Author: Esun Kim <[email protected]>
Date:   Mon Nov 7 11:31:00 2022 -0800

    Added version macros (#31033)