Update publish.yml

Author: maximthomas

.github/workflows/publish.yml

@@ -30,7 +30,7 @@ jobs:
     - name: Install Antora
       run: npm i antora
     - name: Generate Site
-      run: npx antora antora-playbook.yml 
+      run: npx antora --fetch antora-playbook.yml 
     - name: Upload Artifacts
       uses: actions/upload-pages-artifact@v2
       with: