Clean the Polly.Utils.ObjectPool class

[gabidabet]

Pull Request

The issue or feature being addressed

Maintainability and code quality.

Details on the issue fix or feature implementation

Remove code redundancy of constructors of class ObjectPool.

Confirm the following

• I started this PR by branching from the head of the default branch
• I have targeted the PR to merge into the default branch
• I have included unit tests for the issue/feature
• I have successfully run a local build

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 85.38%. Comparing base (67f0b17) to head (8a54b36).
Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2312      +/-   ##
==========================================
- Coverage   85.39%   85.38%   -0.01%     
==========================================
  Files         313      313              
  Lines        7461     7457       -4     
  Branches     1126     1126              
==========================================
- Hits         6371     6367       -4     
  Misses        745      745              
  Partials      345      345              

Flag	Coverage Δ
linux	85.38% <100.00%> (-0.01%)	⬇️
macos	85.35% <100.00%> (?)
windows	85.38% <100.00%> (-0.01%)	⬇️

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