ci: Set up automated checks and npm publishing

[janbuchar]

• As discussed with @ruocco-l, this adds automated code checks and npm publishing
• I'm pretty sure this won't work on the first try, but it's better to fix it when problems appear instead of wasting too much time trying to review it in depth

[metalwarrior665]

Thanks. I assume this is ± copied from our other packages.

Am I correct that it works as this?

• Every commit to master is beta package release
• Every commit with package.json version bump releases that version

[janbuchar]

* Every commit to master is beta package release

Yes.

* Every commit with package.json version bump releases that version

No, package.json bumps are done on each commit to master, along with updating the changelog. Then, when you want to do a stable release, you manually dispatch the manual_release_stable workflow and that releases the version determined using conventional commits, or you can just specify the exact version yourself.

[metalwarrior665]

Ok, so let's try this. The failing tests don't matter now, I will fix that later.

[janbuchar]

The failing tests will probably prevent the publishing workflow from running though...