sqlite-utils 4.2.1

Release: sqlite-utils 4.2.1 Fixes a crashing bug in sqlite-utils 4.2. I'd introduced code that looks like this: from typing_extensions import Self It turned out the typing-extensions package was not listed as a dependency for sqlite-utils - it was installed by one of the other dependencies in the dev dependency group, but when you uvx sqlite-utils directly you don't get those dependencies. As part of fixing this I figured out how to run a smoke test to ensure the CLI tool still works even…