Have the GitHub Actions run not fail when version has not been bumped

[jfmengels]

When working on a package created using elm-review new-package, we get a GitHub Actions workflow, one for tests and one for publish, which publishes the package whenever the version has changed.

The problem is that we sometimes get false failures. https://github.com/jfmengels/elm-review-common/runs/1419530740?check_suite_focus=true

Scenario:

• You have a published package that was created using elm-review new-package (example: https://github.com/jfmengels/elm-review-the-elm-architecture)
• Change the preview configuration somehow (example: add a comment in preview/src/ReviewConfig.elm)
• Commit to master, and push the branch

The version has not changed, so we should not attempt publishing. The problem is that before we even check whether we should do the publishing (which is done in elm-publish-action), we run some tests.

Ideally, we should do the same check as what is done in elm-publish-action. If there is a need to publish, continue with the remaining steps. Otherwise, abort the workflow but let the workflow pass (green check, instead of red check).

I don't know how best to solve this issue, as my understanding of GitHub Actions is too limited at the time.

[jfmengels]

Fixed. If you run into this, create a new package using new-package and copy the GitHub action from that package to your current one.