Automate release tags on each commit to `main`

[stevepiercy]

@davisaglis how about on every commit to main in cookieplone-templates, run CI to automatically tag it with a timestamp, then use that tag when running Cookieplone?

I just now looked, and it appears that @ericof had a similar thought, based on https://github.com/plone/cookieplone-templates/releases/tag/20260320.1. Should I create a new issue in cookieplone-templates to have this discussion?

Originally posted by @stevepiercy in plone/documentation#2072 (comment)