[PR #9068/841d00e backport][3.11] Use URL.extend_query to add params in ClientRequest

[bdraco]

(cherry picked from commit 841d00e)

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 97.76%. Comparing base (3794391) to head (2b51517).
Report is 2 commits behind head on 3.11.

✅ All tests successful. No failed tests found.

Additional details and impacted files

@@           Coverage Diff           @@
##             3.11    #9078   +/-   ##
=======================================
  Coverage   97.76%   97.76%           
=======================================
  Files         108      108           
  Lines       34536    34543    +7     
  Branches     4098     4104    +6     
=======================================
+ Hits        33765    33772    +7     
  Misses        576      576           
  Partials      195      195           

Flag	Coverage Δ
CI-GHA	97.66% <100.00%> (+<0.01%)	⬆️
OS-Linux	97.35% <100.00%> (+<0.01%)	⬆️
OS-Windows	94.91% <100.00%> (+<0.01%)	⬆️
OS-macOS	97.04% <100.00%> (+<0.01%)	⬆️
Py-3.10.11	97.12% <100.00%> (+<0.01%)	⬆️
Py-3.10.14	97.06% <100.00%> (+<0.01%)	⬆️
Py-3.11.9	97.28% <100.00%> (+<0.01%)	⬆️
Py-3.12.5	97.39% <100.00%> (+<0.01%)	⬆️
Py-3.9.13	97.02% <100.00%> (+<0.01%)	⬆️
Py-3.9.19	96.96% <100.00%> (+<0.01%)	⬆️
Py-pypy7.3.16	96.56% <100.00%> (+<0.01%)	⬆️
VM-macos	97.04% <100.00%> (+<0.01%)	⬆️
VM-ubuntu	97.35% <100.00%> (+<0.01%)	⬆️
VM-windows	94.91% <100.00%> (+<0.01%)	⬆️

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