Update actions/cache action to v4

[renovate[bot]]

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`](https://togithub.com/actions/cache/compare/v3...v4) [Compare Source](https://togithub.com/actions/cache/compare/v3...v4)

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Configuration

📅 Schedule: Branch creation - At any time (no schedule defined), Automerge - At any time (no schedule defined).

🚦 Automerge: Disabled by config. Please merge this manually once you are satisfied.

♻ Rebasing: Whenever PR becomes conflicted, or you tick the rebase/retry checkbox.

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• [ ] If you want to rebase/retry this PR, check this box

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[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 78.62%. Comparing base (760a878) to head (c964d76).

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #67 +/- ## ======================================= Coverage 78.62% 78.62% ======================================= Files 9 9 Lines 145 145 Branches 30 30 ======================================= Hits 114 114 Misses 16 16 Partials 15 15 ```

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