small change for a relup demo (#6)

* small change for a relup demo

* forgot to bump versions, thanks CI

Work around CI filesystem cache issues?

Never replicated this locally, but in github actions it appears that
artifacts from previous build somehow mess with the scripts and a clean
step guarantees better behaviour.

minor changes for v0.1.4

Setting up CI for relups

The following checks are added:
- all the apps with changed files require a version bump
- the release itself requires a version bump
- a major version bump bypasses relup creation
- based on these values, the CI process generates appup files and relups
- they get packaged in a tarball and an attempt is made at applying the
  relup

bumping to v0.1.2

Setting things in place for relup generation

- Include the relup plugin from source (more up to date)
- Drop the prod profile for releases and always run as prod (to work
  better with the plugin)
- Call release before tar to generate some metadata files
- Fixing version munging for tags in gh actions
- Optionally generate relup files based on versions and existing
  manifest data