Run Deploy to subdirectory if pull request only if from branch

Author: StanFromIreland

.github/workflows/update.yml

@@ -30,7 +30,8 @@ jobs:
           git-config-name: github-actions[bot]
           git-config-email: 41898282+github-actions[bot]@users.noreply.github.com
       - name: Deploy to subdirectory if pull request 🚀
-        if: github.event_name == 'pull_request'
+        # This does not work for PRs from forks
+        if: ${{ github.event_name == 'pull_request' && github.event.pull_request.head.repo.full_name == 'python-docs-translations/dashboard' }}
         uses: JamesIves/github-pages-deploy-action@v4
         with:
           folder: build