[PR #8632/b2691f2 backport][3.10] Fix connecting to npipe://, tcp://, and unix:// urls

[bdraco]

Co-authored-by: Sam Bull git@sambull.org
(cherry picked from commit b2691f2)

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 97.63%. Comparing base (bf83dbe) to head (f769e76).
Report is 206 commits behind head on 3.10.

Additional details and impacted files

@@           Coverage Diff           @@
##             3.10    #8637   +/-   ##
=======================================
  Coverage   97.63%   97.63%           
=======================================
  Files         108      108           
  Lines       33649    33698   +49     
  Branches     4012     4016    +4     
=======================================
+ Hits        32853    32902   +49     
  Misses        591      591           
  Partials      205      205           

Flag	Coverage Δ
CI-GHA	97.54% <100.00%> (+<0.01%)	⬆️
OS-Linux	97.22% <98.41%> (+<0.01%)	⬆️
OS-Windows	94.74% <98.33%> (+0.01%)	⬆️
OS-macOS	96.89% <98.41%> (+<0.01%)	⬆️
Py-3.10.11	97.00% <100.00%> (+<0.01%)	⬆️
Py-3.10.14	96.95% <98.41%> (+<0.01%)	⬆️
Py-3.11.9	97.18% <100.00%> (+<0.01%)	⬆️
Py-3.12.4	97.30% <100.00%> (+<0.01%)	⬆️
Py-3.8.10	94.48% <98.33%> (+0.01%)	⬆️
Py-3.8.18	96.84% <98.41%> (+<0.01%)	⬆️
Py-3.9.13	97.00% <100.00%> (+<0.01%)	⬆️
Py-3.9.19	96.95% <98.41%> (+<0.01%)	⬆️
Py-pypy7.3.16	96.53% <98.41%> (-0.01%)	⬇️
VM-macos	96.89% <98.41%> (+<0.01%)	⬆️
VM-ubuntu	97.22% <98.41%> (+<0.01%)	⬆️
VM-windows	94.74% <98.33%> (+0.01%)	⬆️

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