Update dependency ddclient to v4.0.0-4

requirements.yml

@@ -17,7 +17,7 @@
   name: coturn
   activation_prefix: coturn_
 - src: git+https://github.com/mother-of-all-self-hosting/ansible-role-ddclient.git
-  version: v4.0.0-3
+  version: v4.0.0-4
   name: ddclient
   activation_prefix: ddclient_
 - src: git+https://github.com/geerlingguy/ansible-role-docker