Skip scheduled runs on forks

Author: timtebeek

.github/workflows/properties.yml

@@ -9,6 +9,7 @@ on:
 jobs:
   update-migrations:
     runs-on: ubuntu-latest
+    if: github.event_name != 'schedule' || github.repository_owner == 'openrewrite'
     steps:
       - name: Checkout
         uses: actions/checkout@v4