Updates of aurtomator

A run uses the aurtomator of the commit that the calling workflows pin, the commit of a release tag, and reads its version from VERSION. Dependabot opens the pull request in your repository that moves the pin to a new release, see The calling workflows. The first run on the new pin also updates aurtomator.sh, see Verified commit.

check-all.sh logs the version before the first package. A check run reads the latest release of staticwire/aurtomator from the GitHub API and compares it with VERSION. A newer release opens an issue, which a run closes once the pin reaches that release or a newer one comes out, see Issues. A failed request logs a warning, and the run goes on.

update-readme.sh writes the version under the package table, with a link when a newer release is out:

aurtomator 0.6.0 ([0.7.0 available](https://github.com/staticwire/aurtomator/releases/tag/v0.7.0))