automated version bumping

[esuomi]

Hi! Since this repo has become active again, would you be interested in easy-to-add automated version bumping with git tagging? I'm totally trying to sell my own tool for this here (https://github.com/esuomi/git-revisions), if you're interested I can make a PR and leave some notes on what kind of secrets you need to set to get the things working :)

[tvirolai]

Yeah, by all means do! Currently the pom.xml provides the info needed for deployment, but the GHA plugin I'm using supports Git tags too.

I'm thinking of migrating the project to a master-develop-feature-branch -model, where merging to master (from develop) automatically creates a release, but completed features are first merged to develop.