[core] Lower the frequency of no-response action runs (#12491)

.github/workflows/no-response.yml

@@ -8,8 +8,10 @@ on:
   issue_comment:
     types: [created]
   schedule:
-    # Schedule for five minutes after the hour, every hour
-    - cron: '5 * * * *'
+    # These runs in our repos are spread evenly throughout the day to avoid hitting rate limits.
+    # If you change this schedule, consider changing the remaining repositories as well.
+    # Runs at 3 am, 3 pm
+    - cron: '0 3,15 * * *'
 
 permissions: {}