Pre-task ignored in docker/podman context

For CI to pass, it's better to always apt-get cache.

molecule/default/converge.yml

@@ -6,9 +6,5 @@
     ansible_python_interpreter: /usr/bin/python3
   vars_files: testvars.yml
 
-  pre_tasks:
-    - name: Update apt cache
-      apt: update_cache=true cache_valid_time=600
-
   roles:
     - role: ansible-role-mariadb

tasks/setup.yml

@@ -5,6 +5,7 @@
       - software-properties-common
       - dirmngr
     state: present
+    update_cache: true
   when: mariadb_use_official_repo
 
 - name: Install mariadb repository key