chore(deps): update actions/cache action to v4

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
actions/cache	action	major	v3 -> v4

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Release Notes

actions/cache (actions/cache)

v4

Compare Source

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 91.87%. Comparing base (d9205d5) to head (7a17ab9).
Report is 4 commits behind head on master.

❗ Current head 7a17ab9 differs from pull request most recent head a86f7cd

Please upload reports for the commit a86f7cd to get more accurate results.

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #580      +/-   ##
==========================================
+ Coverage   91.83%   91.87%   +0.03%     
==========================================
  Files          52       52              
  Lines        2817     2817              
==========================================
+ Hits         2587     2588       +1     
+ Misses        230      229       -1     

Flag	Coverage Δ
os-macOS-12	?
os-ubuntu-latest	91.83% <ø> (?)
os-windows-latest	89.50% <ø> (?)
py-3.10	91.79% <ø> (ø)
py-3.11	91.83% <ø> (?)
py-3.9	91.79% <ø> (ø)
unittests	91.87% <ø> (+0.03%)	⬆️

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