feat: urlRewrite supports idleTimeout

[mabdh]

What type of PR is this?
feat: urlRewrite supports idleTimeout

What this PR does / why we need it:
The idleTimeout is ignored in HTTPRoute if there is urlRewrite. This PR fixes it so idleTimeout is applicable with urlRewrite.

Which issue(s) this PR fixes:
Fixes #6530

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 71.18%. Comparing base (5f30228) to head (879ae7d).
Report is 33 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #6561      +/-   ##
==========================================
+ Coverage   70.80%   71.18%   +0.37%     
==========================================
  Files         220      220              
  Lines       37820    37972     +152     
==========================================
+ Hits        26780    27030     +250     
+ Misses       9480     9373     -107     
- Partials     1560     1569       +9     

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[arkodg]

LGTM thanks