Use faster and not deprecated syntax for software installation

roles/common/tasks/software.yml

@@ -2,14 +2,12 @@
 - name: install common software
   become: true
   package:
-    name: "{{ item }}"
+    name: "{{ common_software }}"
     state: present
-  with_items: "{{ common_software }}"
 
 - name: install extra software
   become: true
   package:
-    name: "{{ item }}"
+    name: "{{ extra_software }}"
     state: present
-  with_items: "{{ extra_software }}"
   when: extra_software is defined