convert two reboot tasks running on changed to handlers

This fixes ansible-lint no-handler complaints.

playbooks/roles/apt_update_and_upgrade/handlers/main.yaml

@@ -0,0 +1,3 @@
+- name: reboot the system
+  become: true
+  ansible.builtin.reboot:

playbooks/roles/apt_update_and_upgrade/tasks/main.yaml

@@ -9,7 +9,5 @@
       ansible.builtin.apt:
         upgrade: dist
       register: apt_update_and_upgrade__upgrade_result
-
-    - name: reboot, after package upgrade
-      ansible.builtin.reboot:
-      when: apt_update_and_upgrade__upgrade_result.changed
+      notify:
+        - reboot the system

playbooks/roles/deploy_ssh_server_config/handlers/main.yaml

@@ -0,0 +1,3 @@
+- name: reboot the system
+  become: true
+  ansible.builtin.reboot:

playbooks/roles/deploy_ssh_server_config/tasks/main.yaml

@@ -11,13 +11,10 @@
         owner: root
         group: root
         src: sshd_config.j2
-      register: deploy_ssh_server_config__ssh_config_copy_result
+      notify:
+        # Reboot instead of just restarting the ssh service, since I don't know how Ansible reacts, when it restarts the service it probably needs for the connection.
+        - reboot the system
 
     - name: deactivate short moduli
       ansible.builtin.shell:
         cmd: awk '$5 >= 3071' /etc/ssh/moduli > /etc/ssh/moduli.tmp && mv /etc/ssh/moduli.tmp /etc/ssh/moduli
-
-    # Rebooting here instead of restarting the ssh service, since I don't know how Ansible reacts, when it restarts the service it probably needs for the connection.
-    - name: reboot, if ssh server config got changed
-      ansible.builtin.reboot:
-      when: deploy_ssh_server_config__ssh_config_copy_result.changed