Fix permission block for deploy-website.yml (#1397)

Based on the instruction here: https://github.com/peaceiris/actions-gh-pages?tab=readme-ov-file#%EF%B8%8F-first-deployment-with-github_token

Write permission is needed to publish GitHub page content to the gh-pages branch.

.github/workflows/deploy-website.yml

@@ -17,11 +17,7 @@ on:
   merge_group:
     types: [checks_requested]
 permissions:
-  pages: write
-    # actions: read
-  # checks: read
-  # contents: read
-  # deployments: read
+  contents: write
 jobs:
   checks:
     if: github.event_name != 'push'