Refactor Ansible tasks to use fully qualified module names and improve code consistency

- Updated all tasks to use fully qualified module names (e.g., ansible.builtin.shell, ansible.builtin.copy) for clarity and to avoid ambiguity.
- Replaced deprecated 'yum' module with 'dnf' for package management on RedHat-based systems.
- Improved formatting and consistency in task definitions, including the use of double quotes for strings and consistent indentation.
- Removed unnecessary comments and whitespace to enhance readability.
- Ensured that conditions and loops are consistently formatted across all tasks.

roles/common/tasks/motd.yml

@@ -1,26 +1,24 @@
 ---
-
 # ----------
 # /etc/motd
 # ----------
 
 - name: (motd.yml) Check if /etc/motd.ORIG exist
-  stat:
+  ansible.builtin.stat:
     path: /etc/motd.ORIG
   register: motd_orig_exist
 
 - name: (motd.yml) Check if /etc/motd exist
-  stat:
+  ansible.builtin.stat:
     path: /etc/motd
   register: motd_exist
 
-
 - name: (motd.yml)  Backup existing file /etc/motd
-  command: cp -a /etc/motd /etc/motd.ORIG
-  when: 
-   - motd_exist.stat.exists == True
-   - motd_orig_exist.stat.exists == False 
+  ansible.builtin.command: cp -a /etc/motd /etc/motd.ORIG
+  when:
+    - motd_exist.stat.exists == True
+    - motd_orig_exist.stat.exists == False
 
 - name: (motd.yml) create /etc/motd
-  shell: figlet {{ ansible_hostname }} > /etc/motd
+  ansible.builtin.shell: figlet {{ ansible_hostname }} > /etc/motd
   when: motd_orig_exist.stat.exists == False