ci: block tagging unless publishing was successful (#37)

Author: ctran88

.github/workflows/release.yml

@@ -29,7 +29,7 @@ jobs:
         if: ${{ steps.release.outputs.release_created }}
       # https://github.com/googleapis/release-please-action?tab=readme-ov-file#creating-majorminor-tags
       - name: Tag versions
-        if: ${{ steps.release.outputs.release_created }}
+        if: ${{ steps.release.outputs.release_created && fromJSON(steps.publish-crates.outputs.published).* }}
         run: |
           git config user.name github-actions[bot]
           git config user.email 41898282+github-actions[bot]@users.noreply.github.com