[PR #7850/22170b21 backport][3.9] Fix import under PyPy 3.8/3.9 on Windows

[patchback]

This is a backport of PR #7850 as merged into master (22170b2).

Fixes #7848.

[codecov]

Codecov Report

Attention: 1 lines in your changes are missing coverage. Please review.

Comparison is base (68c9697) 97.35% compared to head (a9cdc16) 97.35%.

Files	Patch %	Lines
aiohttp/cookiejar.py	0.00%	0 Missing and 1 partial ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##              3.9    #7854   +/-   ##
=======================================
  Coverage   97.35%   97.35%           
=======================================
  Files         107      107           
  Lines       32357    32357           
  Branches     3838     3838           
=======================================
  Hits        31500    31500           
  Misses        652      652           
  Partials      205      205           

Flag	Coverage Δ
CI-GHA	97.26% <0.00%> (ø)
OS-Linux	96.95% <0.00%> (ø)
OS-Windows	94.50% <0.00%> (ø)
OS-macOS	96.61% <0.00%> (-0.01%)	⬇️
Py-3.10.11	94.41% <0.00%> (+<0.01%)	⬆️
Py-3.10.13	96.77% <0.00%> (ø)
Py-3.11.6	96.45% <0.00%> (ø)
Py-3.12.0	96.50% <0.00%> (?)
Py-3.8.10	94.37% <0.00%> (ø)
Py-3.8.18	96.71% <0.00%> (ø)
Py-3.9.13	94.39% <0.00%> (ø)
Py-3.9.18	96.75% <0.00%> (-0.01%)	⬇️
Py-pypy7.3.13	96.21% <0.00%> (ø)
VM-macos	96.61% <0.00%> (-0.01%)	⬇️
VM-ubuntu	96.95% <0.00%> (ø)
VM-windows	94.50% <0.00%> (ø)

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