Fix issues with codecov action

[tsmbland]

Description

It seems this is an issue introduced in codecov action v4.4.1:

• https://github.com/codecov/codecov-action/issues/1463
• https://github.com/codecov/codecov-action/issues/1425
• https://github.com/codecov/codecov-action/issues/1447

I found this which seems to fix the problem: https://github.com/napari/napari/pull/6701/files

[codecov-commenter]

Welcome to Codecov :tada:

Once you merge this PR into your default branch, you're all set! Codecov will compare coverage reports and display results in all future pull requests.

Thanks for integrating Codecov - We've got you covered :open_umbrella: