patch undefined: Updated the DNS configuration in the resolv.conf.j2 template to include both the local host and the Ansible-managed DNS server.

Added a new line to the `resolv.conf.j2` template to specify the Ansible-managed DNS server (`{{ addc_ansible_host }}`). This ensures that the system uses both the local host and the managed DNS server for DNS resolution.

tasks/setupresolver.yml

@@ -0,0 +1,8 @@
+---
+- name: Template /etc/resolv.conf with custom DNS nameservers
+  template:
+    src: resolv.conf.j2
+    dest: /etc/resolv.conf
+    owner: root
+    group: root
+    mode: '0644'