Testing idea: repo with daily builds

While we test cargo-dist's GitHub CI regularly in every PR, it would be nice to get a full runtest going on periodically. We could have a separate repository with a simple tool like a clone of axolotlsay, configured with a job to, once a day, pull in the latest cargo-dist, `cargo dist init`, and then kick off a tagged release. This could help us catch any possible CI issues early.

Start by reviewing the repository's existing GitHub CI and release workflows, then trace how `cargo dist init` and a tagged release are exercised today. Done means a separate repository contains a simple Rust tool, runs daily against the latest cargo-dist, initializes its configuration, and completes a tagged-release run.

Written by the indexing model from the issue text.