feat: add cron to run update-og-images workflow

.github/workflows/update-og-images.yml

@@ -1,6 +1,10 @@
 name: Update og images
 
-on: workflow_dispatch
+   on:
+     schedule:
+       # Runs at 00:05 AM UTC every day
+       - cron: '5 0 * * *'
+      workflow_dispatch:
 jobs:
   update_og_images:
     runs-on: ubuntu-latest