release: publishing docker images is not triggered automatically

[mdonadoni]

GitHub CI is configured to automatically build and publish docker images of cluster components when a new tag is pushed, see for example reana-server (source):

  release-docker:
    runs-on: ubuntu-24.04
    if: >
      vars.RELEASE_DOCKER == 'true' &&
      github.event_name == 'push' &&
      startsWith(github.ref, 'refs/tags/')

However, it seems like this is not triggered by the tag created by release-please. At the moment, the workaround is to delete the tag and to recreate it.

We should modify the CI so that a new release by release-please also triggers automatically the publishing of docker images, for example by exploiting the output values of the GitHub action like release_created