Release for blog

What's Changed

• Publish etc backup code for blog by @unixorn in #1
• Confirm the cluster is healthy before backing it up by @unixorn in #2
• Add pre-commit configuration file by @unixorn in #3

New Contributors

• @unixorn made their first contribution in #1

Full Changelog: https://github.com/unixorn/talosctl-etcd-backups/commits/v0.1.0