feat: gRPC supports reusing write buffer for each connection

[DMwangnima]

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feat

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 61.82%. Comparing base (bfa27f3) to head (3dc662e).
⚠️ Report is 24 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1918      +/-   ##
==========================================
+ Coverage   61.37%   61.82%   +0.44%     
==========================================
  Files         388      390       +2     
  Lines       35063    30158    -4905     
==========================================
- Hits        21521    18645    -2876     
+ Misses      12247    10219    -2028     
+ Partials     1295     1294       -1     

Flag	Coverage Δ
integration	51.91% <30.18%> (+1.40%)	⬆️
unit	52.07% <100.00%> (+0.43%)	⬆️

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