Fix upgrade embeded crashes

[gaborbernat]

Resolves #2058

[codecov]

Codecov Report

Merging #2062 (5e476d3) into main (d9725b7) will increase coverage by 0.11%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##             main    #2062      +/-   ##
==========================================
+ Coverage   93.56%   93.67%   +0.11%     
==========================================
  Files          88       88              
  Lines        4379     4380       +1     
==========================================
+ Hits         4097     4103       +6     
+ Misses        282      277       -5     

Flag	Coverage Δ
tests	93.67% <100.00%> (+0.11%)	⬆️

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Impacted Files	Coverage Δ
src/virtualenv/seed/wheels/periodic_update.py	99.04% <100.00%> (+<0.01%)	⬆️
src/virtualenv/util/path/_pathlib/__init__.py	96.96% <0.00%> (+3.03%)	⬆️
src/virtualenv/info.py	100.00% <0.00%> (+5.00%)	⬆️
...ualenv/create/via_global_ref/builtin/pypy/pypy3.py	100.00% <0.00%> (+5.12%)	⬆️

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