Semantic release preview on PRs

### Describe the feature you'd like

We use [semantic-release](https://github.com/semantic-release/semantic-release) to automatically release new library versions when a PR is merged to `main`.

From time to time we've had some unexpected versions released due to having created commits with the wrong type. It would be interesting to have a way to preview the version number that semantic release will use before we merge to the branch.

I've started making some tries in PR #414 through a Github Action.

### Describe alternatives you've considered

This is not a must so we don't need to do it, but it would avoid confusion on certain releases.