Fix commenting

Signed-off-by: Nelo-T. Wallus <[email protected]>
Signed-off-by: Nelo-T. Wallus <[email protected]>

Author: ntnn

.github/workflows/pages.yaml

@@ -49,6 +49,7 @@ jobs:
     permissions:
       pages: write
       id-token: write
+      pull-requests: write # to comment on PRs
     environment:
       name: github-pages
       url: ${{ steps.deployment.outputs.page_url }} + ${{ env.PAGES_BASE }}
@@ -62,4 +63,4 @@ jobs:
         if: github.event_name == 'pull_request'
         with:
           message: |
-            A preview has been deployed to ${{ steps.deployment.outputs.page_url }} + ${{ env.PAGES_BASE }}
+            A preview has been deployed to ${{ format('{0}/{1}', steps.deployment.outputs.page_url, env.PAGES_BASE) }}