Use port 1022 for all cluster nodes as SSH-port and fix some config-errors

I'm oversaw completely, that I have to change the SSH-port for all nodes
in the cluster otherwise I cannot provide a meaningful load-balancer for
the git-ssh port in it.

Additionally this allowed me to fix some config errors which I simply
oversaw.

roles/agent-setup/handlers/main.yml

@@ -1,3 +1,9 @@
+- name: Restart sshd
+  systemd_service:
+    name: ssh.socket
+    state: restarted
+    daemon_reload: true
+
 - name: Restart resolved
   service:
     name: systemd-resolved