OZG-5031 Fix wiedervorlage notification cron

vorgang-manager-server/src/main/resources/application.yml

@@ -92,7 +92,7 @@ ozgcloud:
   notification:
     mail-from: hilfe@ozgcloud.support
     wiedervorlageDueToday:
-      cron: "* 15 0 * * *"
+      cron: "0 15 0 * * *"
   nachrichten-manager:
     address: self:self
     negotiation-type: plaintext