Improve discovery on Windows and provide escape hatchet

[gaborbernat]

👍

[codecov]

Codecov Report

Merging #2046 (993134d) into main (9201a75) will decrease coverage by 0.23%.
The diff coverage is 73.07%.

@@            Coverage Diff             @@
##             main    #2046      +/-   ##
==========================================
- Coverage   94.27%   94.04%   -0.24%     
==========================================
  Files          87       87              
  Lines        4316     4331      +15     
==========================================
+ Hits         4069     4073       +4     
- Misses        247      258      +11     

Flag	Coverage Δ
tests	94.04% <73.07%> (-0.24%)	⬇️

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Impacted Files	Coverage Δ
src/virtualenv/discovery/builtin.py	81.45% <53.84%> (-3.77%)	⬇️
.../create/via_global_ref/builtin/cpython/cpython3.py	95.08% <91.66%> (-1.29%)	⬇️
src/virtualenv/discovery/windows/__init__.py	100.00% <100.00%> (ø)
...reate/via_global_ref/builtin/via_global_self_do.py	86.25% <0.00%> (-5.00%)	⬇️
...rc/virtualenv/create/via_global_ref/builtin/ref.py	92.85% <0.00%> (-0.80%)	⬇️
src/virtualenv/util/path/_pathlib/__init__.py	96.96% <0.00%> (+3.03%)	⬆️

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