feat(storage): adding logging decorator for object_descriptor_connection

[shubham-up-47]

Adding logging decorator for object_descriptor_connection which creates logical logs for the Read() operations created by the application (#15141).

Currently this pattern is followed for otel tracing,

• connection_tracing.cc
• object_descriptor_connection_tracing.cc
• object_descriptor_reader_tracing.cc

Following the same pattern for creating the logging decorator,

• connection_logging.cc
• object_descriptor_connection_logging.cc
• reader_connection_logging.cc

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This change is 

[codecov]

Codecov Report

❌ Patch coverage is 99.41634% with 3 lines in your changes missing coverage. Please review.
✅ Project coverage is 93.03%. Comparing base (9304a3e) to head (32d6e13).
⚠️ Report is 3 commits behind head on main.

Files with missing lines	Patch %	Lines
google/cloud/storage/async/client_test.cc	96.72%	2 Missing ⚠️
...cloud/storage/internal/async/connection_logging.cc	98.33%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main   #15331      +/-   ##
==========================================
+ Coverage   93.02%   93.03%   +0.01%     
==========================================
  Files        2403     2409       +6     
  Lines      219441   219955     +514     
==========================================
+ Hits       204139   204645     +506     
- Misses      15302    15310       +8     

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[shubham-up-47]

/gcbrun

[bajajneha27]

@shubham-up-47 can you please look at the CI failures before I could start reviewing this PR?

[shubham-up-47]

/gcbrun

[shubham-up-47]

/gcbrun

[shubham-up-47]

@shubham-up-47 can you please look at the CI failures before I could start reviewing this PR?

Done.