system: reboot cronjob

this broke my server once so hopefully it doesn't happen again
https://archlinux.org/news/the-sshd-service-needs-to-be-restarted-after-upgrading-to-openssh-98p1/

roles/system/tasks/essential.yml

@@ -57,3 +57,11 @@
     name: cronie
     state: started
     enabled: yes
+
+- name: Setup reboot cronjob
+  cron:
+    name: "Reboot system"
+    minute: 59
+    hour: 11
+    weekday: 5
+    job: "reboot"