Fix minor stub issues

[hynek]

I've tried running ruff over attrs and these issues seem legit.

[hynek]

uh what's with the checks? did i screw something up when adding environments to the deploy stuff? @webknjaz? 😇

https://www.githubstatus.com says all is dandy

[webknjaz]

uh what's with the checks? did i screw something up when adding environments to the deploy stuff? @webknjaz? innocent

githubstatus.com says all is dandy

I haven't seen what was happening when you tagged me, but sometimes GitHub is just drunk. Their eventually consistent event delivery system sometimes fails to propagate events and doesn't re-deliver them after having platform troubles ("by design").
It's also worth noting that GitHub doesn't always update the status website. Sometimes there are issues with GHA or unicorns that are short-lasting and that doesn't end up on the status page.
Looking at https://www.githubstatus.com/history, I see that today there were two reported problems with Actions specifically a bit earlier than the PR's timestamp, it seems.

The environments wouldn't affect this because they are applied to jobs in another workflow, and you'd have notifications about the approval requests in your inbox. Besides, workflow definition parsing issues manifest themselves differently — there's a weird error message on the workflow run page with almost zero context on what's broken.

[hynek]

They just wouldn't start – it looked like my problems in my package builder where CI wouldn't run on PRs.