Refactor when: mariadb_use_official_repo in a block

tasks/setup_debian.yml

@@ -1,14 +1,16 @@
 ---
-- name: Install mariadb repo necessary packages
+- name: Install mariadb official repository
+  when: mariadb_use_official_repo
+  block:
+    - name: Install mariadb repo necessary packages
       ansible.builtin.apt:
         package:
           - apt-transport-https
           - gnupg2
         state: present
         update_cache: true
-  when: mariadb_use_official_repo
 
-- name: Install mariadb repository key
+    - name: Install mariadb repository key
       ansible.builtin.get_url:
         url: "https://mariadb.org/mariadb_release_signing_key.asc"
         dest: "/etc/apt/trusted.gpg.d/mariadb.asc"
@@ -17,13 +19,12 @@
         owner: root
         group: root
         mode: "0644"
-  when: mariadb_use_official_repo
 
-- name: Determine distribution name (Debian sid pb)
+    - name: Determine distribution name (Debian sid pb)
       ansible.builtin.set_fact:
         distribution: "{% if 'n/a' in ansible_distribution_release %}sid{% else %}{{ ansible_distribution_release }}{% endif %}"
 
-- name: Setup mariadb repository sourcelist entry
+    - name: Setup mariadb repository sourcelist entry
       ansible.builtin.copy:
         dest: /etc/apt/sources.list.d/mariadb.list
         content: |
@@ -32,9 +33,8 @@
         owner: root
         group: root
         mode: "0644"
-  when: mariadb_use_official_repo
 
-- name: Prefer MariaDB repo over Debian repo
+    - name: Prefer MariaDB repo over Debian repo
       ansible.builtin.copy:
         dest: /etc/apt/preferences.d/release
         content: |
@@ -45,7 +45,6 @@
         owner: root
         group: root
         mode: "0644"
-  when: mariadb_use_official_repo
 
 - name: Install packages
   ansible.builtin.apt: