fix: resolve yamllint errors

- Fix line length in meta/argument_specs.yml (wrap long description)
- Remove extra blank lines in molecule/default/collections.yml
- Fix line lengths in tasks/main.yml (wrap long messages)
- Remove trailing spaces from tasks/main.yml
- Ensure all YAML files pass yamllint with relaxed profile

meta/argument_specs.yml

@@ -7,7 +7,8 @@ argument_specs:
         type: list
         elements: dict
         description:
-          - A list of configuration dictionaries that are merged to produce the final configuration.
+          - A list of configuration dictionaries that are merged to
+            produce the final configuration.
           - Each element must have a 'name' key (filename).
       bind9_default_config:
         type: list

molecule/default/collections.yml

@@ -4,4 +4,3 @@ collections:
   - name: ansible.posix
   - name: community.crypto
   - name: community.general
-

tasks/main.yml

@@ -67,7 +67,9 @@
 
     - name: Fail due to invalid configuration
       ansible.builtin.fail:
-        msg: "Configuration validation failed. Changes have been reverted. Check the logs for named-checkconf errors."
+        msg: |
+          Configuration validation failed. Changes have been reverted.
+          Check the logs for named-checkconf errors.
 
   always:
     - name: Remove backup files
@@ -77,7 +79,7 @@
       loop: "{{ bind9_config }}"
       loop_control:
         label: "{{ item.name }}"
-      when: bind9_backup_config | bool is false # Keep if backup is forced, otherwise cleanup temporary atomic backup
+      when: bind9_backup_config | bool is false
 
   tags:
     - bind9