fix: use multiline yaml string for configuration

defaults/main.yml

@@ -1,4 +1,4 @@
 ---
-dnsmasq_listen_address:
-  - "127.0.0.1"
-  - "::1"
+dnsmasq_conf: |
+  bind-interfaces
+  interface=lo

tasks/main.yml

@@ -6,8 +6,8 @@
         state: present
 
     - name: Create dnsmasq configuration
-      template:
-        src: "etc/dnsmasq.d/local.conf.j2"
+      copy:
+        content: "{{ dnsmasq_conf }}"
         dest: "/etc/dnsmasq.d/local.conf"
         mode: 0644
       notify: __dnsmasq_restart

templates/etc/dnsmasq.d/local.conf.j2

@@ -1 +0,0 @@
-listen-address={{ dnsmasq_listen_address | join(",") }}