Invoking "dnf" only once while using a loop via squash_actions is deprecated.

addressing warning:
[DEPRECATION WARNING]: Invoking "dnf" only once while using a loop via squash_actions is deprecated. Instead of using a loop to supply multiple items and
specifying `name: {{ item }}`, please use `name: [u'policycoreutils-python-utils']` and remove the loop. This feature will be removed in version 2.11.
Deprecation warnings can be disabled by setting deprecation_warnings=False in ansible.cfg.

roles/base/tasks/main.yml

@@ -149,18 +149,14 @@
   when: ansible_distribution_major_version|int < 22
 
 - name: dist pkgs to remove (dnf)
-  dnf: state=absent name={{ item }}
-  with_items:
-   - "{{ base_pkgs_erase }}"
+  dnf: state=absent name=["{{ base_pkgs_erase }}"]
   tags:
   - packages
   - base
   when: ansible_distribution_major_version|int > 21 and ansible_cmdline.ostree is not defined
 
 - name: dist pkgs to install (dnf)
-  dnf: state=present name={{ item }}
-  with_items:
-   - "{{ base_pkgs_inst }}"
+  dnf: state=present name=["{{ base_pkgs_inst }}"]
   tags:
   - packages
   - base