Require coverage>=7.4.2

[radarhere]

python-pillow#8514 (comment)

coverage vs coverage>=7.4.2: before, theoretically we could have installed coverage older than 7.4.2 here. I think that was unlikely and it's safer to require the newer version.

I'm a little confused, because the current state of the PR relaxes the coverage requirement, but

But if we want to run it, trove-classifiers>=2024.10.12 is a required dependency. We shouldn't really just hope we end up with a newer one installed into the system.

is an argument that we shouldn't relax requirements?

This PR requires coverage>=7.4.2 in pyproject.toml, to be consistent.

[hugovk]

Thanks, I got the coverage one the wrong way round.