Update data-update-notification.yml

Personal access token used with cross repo write permissions

.github/workflows/data-update-notification.yml

@@ -16,6 +16,6 @@ jobs:
         run: |
           curl -X POST \
             -H "Accept: application/vnd.github.everest-preview+json" \
-            -H "Authorization: token ${{ secrets.GITHUB_TOKEN }}" \
+            -H "Authorization: token ${{ secrets.PERSONAL_ACCESS_TOKEN }}" \
             https://api.github.com/repos/srophe/syriaca/dispatches \
             -d '{"event_type":"data_updated"}'