Introduce configurations to enable or disable authenticated user validation for the refresh grant flow

[DilshanSenarath]

Purpose

Please refer the wso2-extensions/identity-inbound-auth-oauth#2581

Related Issue

• Implement authenticated user validation for the refresh grant flow product-is#21218

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 39.48%. Comparing base (f2a6a3b) to head (4f556de).
Report is 4 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff            @@
##             master    #5976   +/-   ##
=========================================
  Coverage     39.48%   39.48%           
  Complexity    13886    13886           
=========================================
  Files          1733     1733           
  Lines        117137   117137           
  Branches      18901    18901           
=========================================
  Hits          46247    46247           
  Misses        63800    63800           
  Partials       7090     7090           

Flag	Coverage Δ
unit	23.40% <ø> (ø)

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