Used github action for releases in our java template was marked as unmaintained

[MarkusTiede]

actions/create-release#119

affected: https://github.com/baloise/repository-template-java/blob/master/.github/workflows/release.yml

[arburk]

As far as I've read by now, a separate action for releases might by obsolete since GitHub cli is installed and available in actions. Thus the gh release create command can be used.

I've successfully tested this approach in private repo and adopted it here: https://github.com/baloise-incubator/codeql2sonar-maven-plugin/blob/main/.github/workflows/release.yml

• review
• decide if approach should be adopted

[arburk]

As decided in todays bi-weekly, we will adopt suggested approach