chore(ci): disable schedule for PR summary workflow (#2314)

Signed-off-by: Maksim Fedotov <maksim.fedotov@flant.com>

Author: nevermarine

.github/workflows/dev_prs-summary.yml

@@ -15,8 +15,6 @@
 name: PR Summary
 
 on:
-  schedule:
-    - cron: "23 7 * * 1-5" # Runs on every day-of-week from Monday through Friday at 7:23 AM UTC (10:23 AM MSK)
   workflow_dispatch:
 
 defaults: