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

📅 Schedule: Branch creation - "before 4am on Monday" (UTC), Automerge - At any time (no schedule defined).

🚦 Automerge: Enabled.

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (3c3a26f) 88.52% compared to head (f56d5a7) 88.52%.

❗ Current head f56d5a7 differs from pull request most recent head 4528134. Consider uploading reports for the commit 4528134 to get more accurate results

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #3343   +/-   ##
=======================================
  Coverage   88.52%   88.52%           
=======================================
  Files          89       89           
  Lines       28323    28323           
=======================================
  Hits        25074    25074           
  Misses       3249     3249           

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