chore: update molecule configuration

- Update prepare.yml with test setup
- Update molecule.yml with test infrastructure configuration

molecule/default/prepare.yml

@@ -4,3 +4,7 @@
     - name: Update apt
       ansible.builtin.apt:
         update_cache: true
+    - name: Install bind9-dnsutils package
+      ansible.builtin.apt:
+        name: bind9-dnsutils
+        state: present