update codecov action v4

[codecov[bot]]

Codecov Report

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

Project coverage is 97.83%. Comparing base (e946afe) to head (ea9f130).

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #738 +/- ## ======================================= Coverage 97.83% 97.83% ======================================= Files 1 1 Lines 2403 2403 ======================================= Hits 2351 2351 Misses 52 52 ```

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