Use a fine-grained personal access token to push to the Sass site (#2029)

Author: nex3

.github/workflows/ci.yml

@@ -591,7 +591,7 @@ jobs:
       - uses: actions/checkout@v3
         with:
           repository: sass/sass-site
-          token: ${{ secrets.GH_TOKEN }}
+          token: ${{ secrets.SASS_SITE_TOKEN }}
 
       - uses: EndBug/add-and-commit@v9
         with: