chore(logic): Runner should be removed before termination

[dev-slatto]

The EC2 instance should be marked as unschedulable by Github Actions before termination to make sure that Github Actions dosen't schedule any jobs to it while it's being terminated.

[Dmitry1987]

definitely the correct way to do it, why it wasn't merged 😢

[Dmitry1987]

oh i see the comments, gh.remove() will mark it unschedulable, aha. PRs remain open, should be just closed if the fix is not relevant anymore 🙃