Move to v4 of codecov-action

[semanticdiff-com[bot]]

Review changes with SemanticDiff.

[codecov[bot]]

Codecov Report

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

Comparison is base (2997b57) 72.45% compared to head (40afe4f) 72.41%.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #109 +/- ## ========================================== - Coverage 72.45% 72.41% -0.05% ========================================== Files 43 43 Lines 4981 4981 ========================================== - Hits 3609 3607 -2 - Misses 1372 1374 +2 ``` | [Flag](https://app.codecov.io/gh/HadrienG2/hwlocality/pull/109/flags?src=pr&el=flags&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Hadrien+G.) | Coverage Δ | | |---|---|---| | [ubuntu-latest](https://app.codecov.io/gh/HadrienG2/hwlocality/pull/109/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Hadrien+G.) | `72.08% <ø> (-0.03%)` | :arrow_down: | | [windows-latest](https://app.codecov.io/gh/HadrienG2/hwlocality/pull/109/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Hadrien+G.) | `70.83% <ø> (-0.03%)` | :arrow_down: | Flags with carried forward coverage won't be shown. [Click here](https://docs.codecov.io/docs/carryforward-flags?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Hadrien+G.#carryforward-flags-in-the-pull-request-comment) to find out more.

:umbrella: View full report in Codecov by Sentry.
:loudspeaker: Have feedback on the report? Share it here.