Support sharing connection pool client.

[truyenh20]

This code currently does not allow you to set the external MongoDb client for re-use. A simple modification to this code would help utilize the external connection pool client

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Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 98.52%. Comparing base (8d95c84) to head (85af6a9). Report is 197 commits behind head on main.

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Additional details and impacted files

@@             Coverage Diff             @@
##              main     #694      +/-   ##
===========================================
- Coverage   100.00%   98.52%   -1.48%     
===========================================
  Files            1        2       +1     
  Lines           76      136      +60     
  Branches        15       32      +17     
===========================================
+ Hits            76      134      +58     
- Misses           0        2       +2     

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[Tirke]

thanks for the PR will merge