Fix deployment URL output

They changed the action output and forgot to tell anyone.

.github/workflows/commit-preview.yaml

@@ -4,12 +4,12 @@ name: Commit preview
 jobs:
   build-website:
     uses: ./.github/workflows/build-website.yaml
-  
+
   publish:
     uses: ./.github/workflows/publish-website.yaml
     needs: build-website
     secrets: inherit
-  
+
   comment-on-commit:
       name: Add a comment on the commit
       runs-on: ubuntu-latest
@@ -18,7 +18,7 @@ jobs:
         contents: read
       env:
         GITHUB_PUBLISH_TOKEN: ${{ secrets.COZY_PAT }}
-        DEPLOYMENT_URL: ${{ needs.publish.outputs.deployment-url }}
+        DEPLOYMENT_URL: ${{ needs.publish.outputs.url }}
       steps:
           - name: Comment on the Comment
             if: env.GITHUB_PUBLISH_TOKEN != ''