Fix a syntax error

tasks/main.yml

@@ -9,9 +9,8 @@
   ansible.builtin.import_tasks: timezone.yml
 - name: Sysctl kernel parameters
   ansible.builtin.import_tasks: sysctl.yml
-- name: Additional network interface(s)
-  ansible.builtin.import_tasks:
-    - network-interfaces.yml
+- name: Additional network interfaces
+  ansible.builtin.import_tasks: network-interfaces.yml
 - name: Create a directory that will contain the local generated certificates
   ansible.builtin.import_tasks: pki_dir.yml
 - name: Self signed certificates waiting for the letsencrypt ones