updated github actions

.github/workflows/release.yml

@@ -178,6 +178,7 @@ jobs:
     needs: publish_zenodo
     name: "Send toot about it to railtoolkit@fosstodon.org"
     runs-on: ubuntu-latest
+    steps:
       - uses: cbrgm/mastodon-github-action@v1
         with:
           message: "The new version ${{ github.event.inputs.version }} of TrainRuns.jl is available! DOI: https://doi.org/${{needs.publish_zenodo.outputs.doi}}"