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

[svaningelgem]

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 99.73%. Comparing base (7c97412) to head (6e9616d).

Additional details and impacted files

@@           Coverage Diff           @@
##           master      #16   +/-   ##
=======================================
  Coverage   99.73%   99.73%           
=======================================
  Files           8        8           
  Lines         384      384           
=======================================
  Hits          383      383           
  Misses          1        1           

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