Prepare Version 11

[kemitchell]

@ljharb, I have got a bit lost in all your modular Actions CI configuration. Could I ask you to go in and correct my adding ls-engines to CI, or confirm that I managed to do it right?

I see there's an "engines" job that comes from all your configuration. But I also see that's running npx ls-engines --production false. We rather want to check production deps, ignoring dev deps and peer deps, on behalf of users.

[kemitchell]

I see how postlint would work, and I'll push that in a second. I do feel the scripts are becoming something of a rat's nest. I'd rather be giving scripts meaningful names and defining execution elsewhere. But I understand you've put substantial time into all the Actions configs. You maintain a lot. Not asking to make this the exception.

[kemitchell]

Released as 11.0.0.

[ljharb]

It's totally fine to add an exception, but the convention of npm test running everything locally requires a maze of scripts, and "efficient CI" requires only running tests in the matrix and running everything else once.