Update GitHub slug and token in publish workflow

Author: jamesfredley

.github/workflows/publish.yml

@@ -32,8 +32,8 @@ jobs:
       - name: Publish Main Site
         run: ./publish.sh
         env:
-          GITHUB_SLUG: apache/grails-static-website
-          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          GITHUB_SLUG: apache/grails-website
+          GH_TOKEN: ${{ secrets.GRAILS_GHTOKEN }}
           GH_BRANCH: asf-site-production
           # AIRTABLE_BASE_ID: ${{ secrets.AIRTABLE_BASE_ID }}
           # AIRTABLE_API_KEY: ${{ secrets.AIRTABLE_API_KEY }}