fix monolog mail handler configuration

config/packages/monolog.yaml

@@ -118,7 +118,7 @@ monolog:
         admin_info:
             type:           fingers_crossed
             action_level:   info
-            handler:        cron_info_deduplicated
+            handler:        admin_info_deduplicated
             channels: ['admin']
         admin_info_deduplicated:
             type: deduplication