Dependabot automatically maintains GitHub Actions workflows by sending
Pull Requests to project when action updates are released. Dependabot
labels the pull requests 'ci: bump actions/checkout from v3 to v4'.
Dependabot opens a maximum of five Pull Requests at a time and reviews
the need for PRs once a week.
Basic configuration which builds p9p on latest Ubuntu & macOS.
Skipped on adding more operating systems as build would hold up
waiting for runners, whereas with -latest targets, build starts
immediately.
Supported runners can be found on
https://docs.github.com/en/actions/using-jobs/choosing-the-runner-for-a-job
