OPT: 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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Configuration

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (5a38deb) 92.32% compared to head (6f7c8da) 92.32%.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #111   +/-   ##
=======================================
  Coverage   92.32%   92.32%           
=======================================
  Files          33       33           
  Lines         834      834           
  Branches      125      125           
=======================================
  Hits          770      770           
  Misses         44       44           
  Partials       20       20           

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